Examples of the colors I produce.
All images are Copyright © 2019 by Karen Trinkaus and may not be used without permission.
Examples of the colors I produce.
All images are Copyright © 2019 by Karen Trinkaus and may not be used without permission.
What is enrichment?
Enrichment is an animal welfare principle that aims to increase a captive animal’s quality of life by going above and beyond the bare necessities (food, water, shelter). In particular, it strives to address the mental health of the animal as much as the physical.
Some common methods of enrichment:
Techniques are going to vary depending on what species you are working with, and why the animal is being kept. You would not enrich a parrot’s life the same way you would an elephant or a snake. Some methods of enrichment can satisfy multiple drives for an animal, such as this vinyl ball for a giraffe. It encourages the giraffe to stretch its neck and simulates wild foraging behavior. It also provides something novel to explore.
In pet birds, enrichment often takes the form of toys.
Foraging has gained popularity in recent years, and not just with birds. The concept of foraging is that it makes the animal work to get its food, as it would have to do in nature. One of my veterinarian professors fed his dogs out of a tool box filled with rocks. They had to shift rocks around and to get every bit of kibble, rather than wolfing everything down in seconds.
Many foraging toys are available on the market. The options below are designed for repeated use, but it’s important to have destructible toys as this better mimics how parrots forage in nature.
Most psittacines have a desire to chew. Their beaks are specially designed to eat fruit/seeds in their green state. This gives them a competitive edge against other species that have to wait for food to ripen. Offering destructible items, be they wood or paper or food, can fulfill this need to chew.
With the wide variety of toys available to pet owners, it can be easy to associate enrichment with toys alone. This narrow view of enrichment has resulted in many laypeople criticizing breeding enclosures based on their distinct lack of toys. There are several problems with this.
Toys are dangerous.
Safety is a huge problem with toys. Although things have gotten much better in recent years, the fact remains that birds, like children, are great at finding ways to injure themselves. I can’t tell you how many times I’ve seen birds hung up on toys, either by their band or a toe or a foot. Yes, they can get hung up without a band. Leave the band alone and check the cage and toys for hazards instead.
This is especially dangerous for breeder birds, who are generally not tame and may panic if approached, injuring themselves further.
As fun as toys may be for pet birds, they are still an unnatural element designed by humans and there are risks of injury, toxicity, and death. I’m not saying toys are bad, I’m saying breeders often employ safer enrichment options.
Nesting birds often ignore toys.
Pairs that are actively nesting are generally too preoccupied with the business of raising the next generation to be bothered with toys. An incubating hen isn’t going to be playing with toys, but what about the male? Males will usually sit on guard duty outside the nestbox when they are not feeding. Play is not a concern for them at that time- safety and security of the nest site is. As soon as chicks are pulled for handfeeding, pairs will go back to playing with toys.
Safer, Alternative Methods of Enrichment
Tony Silva gives several ideas here. I’m a big fan of food enrichment. Psittacines are naturally destructive and offering whole food items is a great substitute for manufactured toys.
This is a Brussels sprout stalk. I tie a rope around it and hang it in the cage. The right image is what it looks like after my ringnecks have been at it for a week. They LOVE edible toys.
For smaller species, leafy greens work well. Skewers are also a favorite. I can throw several whole carrots in with my ringnecks and they will have great fun destroying them. It’s safer and gets birds to try a wide variety of foods. Chop is nice, but my birds have much more fun with whole items.
Planted aviaries are very difficult to do with psittacines. I tried putting a ficus tree with my kakarikis once and it didn’t go well for the tree. Tree clippings are a more realistic option. We have numerous citrus trees around our property and they give us plenty of fresh branches for play. Just make sure your clippings are from nontoxic species and haven’t been sprayed or collected next to a road (exhaust builds up on the plants).
Flocking is another method of enrichment. Pet birds are often kept isolated in small cages. Their owner may be their only source of social interaction. If the species is naturally very gregarious, this can lead to stress if, like most humans, their owner has a job away from home. This is why I recommend having at least two birds.
Many parrot species live together in large groups and break off into pairs for breeding. This can be mimicked by housing birds in smaller cages for breeding and then flocking them together during the off season. It gives them a chance to socialize, but also exercise.
Which brings me to another source of enrichment…
My first batch of show cockatiels came from a breeder whose husband developed Bird Keeper’s Lung. She already sold most of her stock by the time I got to her, and was considering taking the leftovers to a bird mart. But then she lamented that pet owners might buy them and keep them in tiny cages. After living the good life in an aviary, fully flighted with an actual flock, being stuck indoors in a pet cage seems a cruel fate.
I want to be clear–there’s nothing wrong with keeping birds indoors, in pet cages, or clipping wings. My own personal pets are kept that way. BUT, nothing beats an aviary for enrichment. Nothing. They can fly–not in a house, where there are lots of hidden dangers–but in a space designed for birds. They can feel the sunshine and fresh air. They can feel the seasons change (yes, even winter). It’s a whole different level of care, and if you have the ability to build an aviary, even just for nice summer days, I highly recommend it.
© 2020 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.
Cockatiels are dimorphic, which means males and females look different. They’re pretty easy to sex IF you know what to look for. Unfortunately, there’s a plethora of misinformation online. When it comes to sexing cockatiels, mutations matter, and most people simply don’t have the expertise to do it accurately. This is because certain rules of sexing are conditional, and if you don’t know the conditions under which the rule applies, you’re going to be wrong.
Let me give you an example. Pretend you’re an alien studying life on Earth, and one of your fellow aliens tells you that humans are easy to sex. All you have to do is follow two simple rules: Males are tall and have short hair. Females are short and have long hair.
The problem with this blanket statement should be obvious, but in case it’s not:
Likewise, there are a lot of incorrect generalities when it comes to sexing cockatiels. This has led to a lot of well-intentioned people repeating things they’ve heard without any concept of why they’re applying the information incorrectly:
Cheek Patch Intensity/Color
Cheek patch color/intensity is one I see commonly, so we’ll tackle that first. Cockatiels have been bred in captivity for a long time, and while this rule might apply to wild cockatiels, it’s useless for sexing pets, which are likely to carry a number of color mutations and are very far removed from their wild counterparts.
All the examples I give here are adult birds. Scroll slowly if you’d like to test yourself.
Above we have two normal colored birds. Male on the left, female on the right. The rule seems to apply, right?
Okay now what about these two? The bird on the left has a very nice orange patch, just like the male above. The bird on the right doesn’t even have a cheek patch.
The problem here is that these birds have obvious mutations. The right is a pearl; left is whiteface. Whiteface birds can’t produce any yellow/orange color, so they don’t have a cheek patch. To someone inexperienced, it might even look like the bird on the left has a facial mask. There’s yellow there, right? Nope.
This is why knowing the mutation matters. Females keep their pearls into adulthood. Males don’t (unless they’re pied–another rule broken!).
Okay now what about these two? The bird on the left has a much brighter cheek patch than the bird on the right.
I hate to break it to you, but that nice orange patch belongs to a lutino pearl hen. The male on the right has the yellow cheek mutation. There are several mutations that alter the cheek patch color like this. Pastelface is another one.
“No problem,” someone says. “I can just look for the facial mask!”
Go ahead and try sexing the birds below.
On the left we’re missing the distinct facial mask and the cheek patch is dull. The bird on the right is lutino, so it’s difficult to see if there’s a mask there, but the cheek patch is bright. Which one is male and which one is female?
Lutinos are really difficult to sex visually, because a lot of their identifying characteristics, like the mask and tail barring, are hard to see. It’s even more difficult if they’re pied lutino, which you may not even know from looking at them.
I cannot tell you how often I see people claim that a pied bird must be male because it has yellow/white on its head. Mutations matter!
Petrie, the male on the left, is what’s called a dirty-faced pied–he has melanin on his face. Pied males do not get a facial mask, and pied females can have yellow heads. They cannot be sexed visually. Pearl pied males may lose their pearls, but they can also keep them. Pieds should really be sexed by behavior or DNA. Just to give you an idea:
So, how do you sex your cockatiel?
There are a few methods. If you’re impatient and want to know now, or if you have a pied or lutino, I recommend DNA sexing. It’s important to note that lutino is a sex-linked gene, and it is statistically far more likely to be female.
The other method is to wait until the bird is at least nine months old and has gone through a molt. Males will have begun to show their standard characteristics by then (except for pieds!). At this point you can use my guide to sexing or ask an expert. If you post in a general Facebook forum, you’re going to get a lot of inexperienced people giving you their incorrect opinions about head/cheek color, which is why I’m recommending a professional forum.
For more about how sex-linked genes work, see my article on Genetics.
© 2019 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.
I’m tired of people acting like starter pets aren’t a thing. Cockatiels and budgies do well in just about every household. Cockatoos and lories absolutely do not. Would you recommend a macaw as a first bird? I didn’t think so.
Starter does NOT mean disposable. It means easy to for beginners to keep. Starter pets are your most laid back, your most versatile. They’re the chill animals who go with the flow while their owner learns the ropes, and they’re an essential entry point for budding bird people. So stop acting like “starter pet” is an insult. Starter pets are AWESOME. That’s what makes them starter pets.
What makes an animal a good starter pet?
People are going to make mistakes, even if they are trying their best. No one starts out an expert. Some knowledge is gained better through experience (bird body language for one). Researching everything prior to purchase can still leave someone with conflicting advice, thanks in part to the many armchair experts that give misleading information online.
Starter pets are physically hardy. They’re able to withstand mistakes here and there. Budgies and cockatiels are native to the Australian outback. Their bodies are designed to deal with food and water shortages, and greater temperature extremes. They’re tough, unlike kakarikis, who can pass out or have a heart attack if stressed.
All animals have a baseline of care, but for some, this baseline is higher than others. Starter pets are at the lowest possible bar. If an animal has a specialized diet (lories, eclectus) or needs heavy-duty equipment (macaw), then it’s not a starter pet.
Few Behavior Problems
Why are cockatiels starter pets but cockatoos are not? Because cockatoos turn into a neurotic mess if handled wrong.
Some animals are more likely to develop behavior problems if incorrectly handled. Perhaps they are nippy, flighty, or tend to attach to one person. Maybe they don’t take commands easily and need a person who can handle their strong will appropriately. Such animals do not make good starter pets. Behavior issues are not the fault of the animal, but simply a byproduct of an inexperienced owner reacting inappropriately to certain innate behaviors.
Good with Children
This quality is important if the pet is intended for a family with children or access to grandchildren. Starter pets should be reasonably tolerant of handling, especially as children tend to be overzealous even when coached. You want to avoid species which are nippy when excited (green cheek conures) or bite hard when their personal space is invaded (Indian ringnecks).
Budget absolutely matters. It’s classist to say otherwise. Not all families can afford expensive pets. There’s a vast difference between setting up a budgie vs a macaw. Larger birds have greater long-term costs as well. Working within your means is not a crime. It’s sensible.
This one is hard, as outside of rodents, you’re going to have a starter pet for at least ten years. Some people may find that birds are not for them, and in this case rehoming is best. A longer lived pet is more likely to run into the problem of major life changes. What happens when a child grows up and moves to college? Gets married? Has kids of their own? Moves? What happens if your job changes and you have less time to spend with your pet? What if your bird outlives you?
The longer a pet lives, the more likely it will encounter situations like these and the more likely it will be rehomed. We can’t always plan for the future, but lifespan should definitely be taken into account when acquiring a pet, especially if there’s a good change it might outlive you.
What a starter pet is NOT.
Any time you purchase an animal, even if it is a starter pet, you need to consider your life situation and do your research. While starter pets are a good way to find out if a particular type of pet is good for you, that doesn’t mean they should be discarded the moment you feel like you can move on to something better. This is an animal that is bonded with you and your family. It isn’t going to understand why it is being cast aside, and few pets are rehomed just once. Pets, even starter pets, should be purchased with the intent to keep them for the long term.
© 2019 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.
One of the things I typically ask potential customers is “do you have any birds now?” If they do not, I try to convince them to get two. Wild psittacines live together in large flocks or small family groups. They are not mentally designed to live alone and when you have a single bird, even if you spend a lot of time with it, there are going to be times when you’re not around- work, school, weddings, vacations, running errands. When you make yourself your parrot’s only source of social interaction, you unintentionally set it up to have a stressful life. Toys can keep birds busy, but they only do so much and they don’t satisfy any of the bird’s social needs. When a bird has to rely on humans to be its only flock, it will scream when they are out of the room (contact calling, a bird version of “where are you?!”) and can develop stereotypies (purposeless, repetitive behaviors like pacing or plucking). Stereotypies are an indicator of poor animal welfare.
I have kept birds for 27 years. In my professional opinion, a bird housed in a large aviary with a flock of its own kind is far more psychologically healthy than a single bird kept in a pet cage with a zillion toys. Aviary birds have the benefit of exercise, flight, and socialization. The research agrees with me. A UC Davis study found that: “Paired parrots used their enrichments more, and spent less time screaming, less time preening, and less time inactive than singly housed parrots. . . . Isosexual pair housing resulted in a more active and diverse behavioral repertoire, eliminated the development of stereotypy and reduced fear responses to novel objects without imparting significant risk of illness and injury or jeopardizing the ability of parrots to relate positively with humans. Thus, it appears that pair housing can significantly improve environmental quality and positively affect the welfare of captive parrots.”
Many people are concerned that if they have more than one bird their bird won’t love them anymore, or that they won’t have as deep a bond. The latter is true, but context is important. When humans speak of bonding to their parrots or being chosen by their parrots, they think of their parrot as their “baby” and themselves as a parent or caretaker. That is not how the parrot sees it. When a parrot bonds to a person they see the human as a mate. This can lead to all kinds of behavior problems when the parrot’s sexual advances are rebuffed or intentionally squashed. It can lead to aggression when the human prefers their spouse, or shows affection to their child. It definitely leads to stress, as mates are typically not apart during the day unless one is incubating eggs. It’s not a psychologically healthy relationship and it’s unfair to the bird. However, if the bird has a mate (same sex is fine!) you won’t see the same issues. (Please note: a mirror is NOT a substitute for a real bird and can be detrimental).
Will the bird still be tame once it has a companion? Yes! Birds still enjoy interacting with humans even if they have a buddy. You can see evidence of this every time I walk into my aviary:
The relationship won’t be less, it will just be different. You will be someone they enjoy spending time with. Do people stop loving their parents or siblings every time they enter a romantic relationship? Do they love their spouse less because they had a child? Their child less because they had another? No. Love is not a finite resource. People (and birds) can have multiple healthy, loving relationships that are all somewhat different. Each relationship has its own dynamic and fulfills various needs.
To me the ideal is that birds be raised and housed with their own kind from the start- if you’re buying a baby bird, get two. If you do not wish to breed I recommend a same sex pair. Even a mature solo bird that prefers humans can benefit from having a buddy. They don’t have to be housed together, be the same species, or even particularly like one another. They just have to be kept in the same room within sight of one another. My pets ten years ago were my Goffin cockatoo, Loki, and a mitred conure, Verde. They disliked one another. When I first started having children I had little time for my birds. I’m sure Loki and Verde missed me, but they never developed any psychological issues from lack of human contact. In fact, over time I saw their poop piles move towards each other’s cages. When Verde passed away Loki immediately began to scream more. I gave her as much attention as I could but it didn’t really die down until I got her a replacement buddy (my pionus, Lando).
This is something very serious to consider: Birds are long-lived and regardless of how much time you have now, there will always be a point (or more likely, many points) in your life when you just won’t have as much time as you’d like to spend with your birds. These periods are temporary, yet many people rehome their birds anyway, mistakenly believing it is the best interest of their bird. A bird with a companion is easily able to weather these patches of reduced attention, where a solo bird will feel isolated and forgotten and start to show it by screaming, plucking, or otherwise acting out.
If you are on the fence about getting a second bird, know that your concern is quite common, but the best thing for birds in the long run is to have access to other feathered friends. It will reduce their stress, frustration, contact calls, and help alleviate boredom. It will also reduce your urge to rehome unnecessarily when you find you suddenly have a life event that takes a majority of your time.
Copyright 2018 by Karen Trinkaus. May not be reprinted without author’s permission.
Congratulations on your new baby bird!
Things to do before bringing a bird home:
One of the things I see touted a lot is that you should leave birds alone for a few days to let them adjust. If a bird is a handfed baby, this is terrible advice. Think of it this way. You adopt a young child. You show them to their room. Then you spend the next few days ignoring them so they can “adjust.” No! Birds, like humans, need to feel like part of the family. Your baby is already used to humans. That’s the whole point of handfeeding. Talk to it frequently. Make it feel welcome!
You can start handling your bird on the second day, or the first day if it seems open to the idea. Keep in mind that while the baby is tame, it doesn’t know YOU. Cockatiels are usually accepting of petting immediately, but other species may want you to earn their trust first. If you go in right away for a head scratch you may be rebuffed or even nipped. It’s like meeting someone right away and asking to hug them, hold their hand, or kiss them. Listen to your bird’s body language and respect its body autonomy. Go slowly and work up to it. Your goal is to create a solid relationship built on trust, not to bully your bird into submission.
Set boundaries and use commands to help your bird know what to expect. If you don’t want a bird constantly sitting on your head and pooping in your hair, then don’t allow it to do that. If you want your bird to stay on a play stand while out, return it to the stand whenever it flies out of bounds. Say “step up” whenever you want the bird to step up. Be consistent.
Babies explore with their mouths. They use their beak like a hand and will apply pressure to get a feel for things. Some species, like green cheek conures, will play fight and nip during play. It is important that you do not allow them to mouth fingers, hands, earlobes, moles, etc. Move the target item out of their way, cover it, or distract them with something else (though be careful not to reward inappropriate nibbling). I like to have a bird-friendly snack available when I sit with my birds. It helps with flock bonding because we are sharing a food, and it gives the birds a more appropriate thing to nibble.
Routine, Routine, Routine!
Set up routines as quickly as possible. Birds, like children, love routine as it lets them know what to expect and when. Feed at the time you normally plan on feeding. Let them out when you normally plan on it. This is especially important to reduce the odds of screaming/contact calls. Birds who know when they are normally let out are less likely to scream to be let out at other times.
If your bird has a sleep cage or if you plan on covering the cage at night, you can start doing that from the first day. Birds need 10-12 hours of sleep. If their cage is in a high traffic area like the living room, a sleep cage in a quieter area is a good idea. They can’t sleep well if you’re up late watching television loudly, even if the cage is covered.
Parrots do not normally live alone. They are always with their flock, family, or mate. When isolated, it is very common for birds to do a contact call. This call basically means “Where are you? I can’t see you!” Some people rapidly get irritated with contact calls and do things that can easily slip into animal abuse, like screaming at the bird or covering it during the day. My pet pionus spent years covered and under a back porch, probably because its former owner was frustrated with the noise and kept escalating “solutions.” Contact calls are NORMAL and birds should not be punished for them.
There are a few things you can do to help mitigate contact calls:
The easiest is to have two or more birds. That way part of the flock is always there and they feel less alone. This is best done when the birds are young so that they grow up together and you don’t have to worry about introductions later.
You can make a noise back. Especially if your bird makes an annoying call (like my pionus), you can try to get them to make a different noise. When my pionus yells I either ignore it or answer back with a whistle, which starts him whistling instead.
Ignore it. This takes far more mental strength. If you have a set routine, your bird will eventually learn when you are around and when you are not, and when it can reasonably expect to have time out of the cage with you. When we first moved to this house my Goffin was calling ALL THE TIME. It took maybe two months for her to get used to the new routine, but eventually she stopped calling all the time. Now she only calls periodically when she knows I’m around and should be available.
Give them plenty to do while they’re in the cage. They do need to learn to play by themselves. It won’t solve the problem completely, because the point is that they want to be able to see/hear you. Having them out on a play stand in a common area is another solution.
If You Have Other Birds
Introductions should be slow. Time outside the cage should always be supervised, especially if either species is known for aggression. It is generally recommended that all new birds be quarantined for 30-45 days to ensure they do not bring any diseases into your flock. If you purchase a bird from a breeder with a closed aviary system then you’re probably okay, but quarantine is never a bad idea.
If you can find a good avian veterinarian in your area, I recommend making an appointment. This allows the vet to see your bird when it is healthy and get a baseline for things like weight. It gives the vet something to compare to if/when the bird ever gets sick. The vet can also answer any further questions you have about avian health.
Here are some external links you may find helpful:
© 2017 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.
Personality: Playful, inquisitive, intelligent, independent
Experience level required: Moderate
Approximate Lifespan: 30 years
Sexing: Dimorphic. Males develop a ring anywhere from 18mo-3 years. If you want to know before that you must DNA sex your bird. Some colors, like albino, never get a ring.
Vocalizations: They can be loud (see video below).
That said, they usually do not make noise all day every day. Vocalizations are typical in the early morning/late afternoon, if the bird feels separated from the flock, or if it is frightened.
Talking ability: Good. Both sexes talk.
Minimum recommended cage size: Ringnecks have long tails that are easily damaged in cages that are too small or cluttered. They need large cages with plenty of clearance for their tails.
Cautions: Ringnecks do not form the same strong pair bonds seen in other species. Most parrots will pair off with a buddy or mate. Ringnecks generally don’t do this outside of the mating season. This can make them seem standoffish. Do not buy a ringneck expecting a cuddly, sociable bird!
After weaning, ringnecks go through a bluffing phase in which they bite and show aggression. It is critical that the owner NOT react to the bites. The first year is critical to ringneck development. They go wild very easily if not consistently and amicably handled during the first year.
Don’t get me wrong, ringnecks make wonderful pets, they just aren’t for everyone. I’ve had to steer many potential clients over to conures because they had unrealistic expectations of what ringnecks are like. They are playful, highly intelligent, and curious. They enjoy spending time with people but can also play well by themselves. The best ambassador bird I ever had- the one I could trust to be pet by children and adults alike- was an Indian ringneck. They require an owner who understands their behavior and is willing to give them a lot of time that first year. With ringnecks, you get out what you put in.
Disclaimer: This guide is meant to be a very basic overview of these topics. Terms are kept as generic as possible, and some things are vastly oversimplified.
Physical characteristics are controlled by genes. We get two sets of genes from our parents. If our parents both have brown eyes, we will likely have brown eyes too. But what happens when one of our parents has blue eyes and the other has brown? What color will our eyes be? Both genes will not be displayed at the same time. Our body controls which genes show up through gene expression. There are several kinds of gene expression, but dominant, recessive, and sex-linked are the three we’ll worry about.
Dominant and Recessive Genes
A dominant gene is expressed no matter what. If your body contains a single copy it will show up visually. A recessive gene can only be displayed if BOTH the genes received from the parents are the same recessive gene. Think of it this way: a dominant gene is like the sun and recessive genes are like the stars. If the sun is in the sky, the stars cannot be seen even though they are there. Likewise, when a dominant gene is present the recessive genes are all hidden. But if there are no dominant genes around we can see recessive genes.
In humans, the gene for brown eyes is dominant and the gene for blue eyes is recessive. So if we received one brown gene from dad and one blue gene from mom only the brown gene would be expressed. Our eyes would be brown.
The only way to get blue eyes is if you get TWO copies of the gene for blue eyes.
So far all of our examples have carried two copies of the same gene. Not all parents are like this. When a brown-eyed person and a blue-eyed person have a child, even though that child has brown eyes they still carry the gene for blue. What if that child decides to have children? Which gene will they inherit? Luckily, there is an easy method to find out.
A Punnett square (below) is a quick way to find out the chances of a child inheriting a certain gene. The father’s genes are each entered at the top and the mother’s genes are entered on the side. The four boxes in the center are the possible combinations of those genes. Let’s try one together.
First, draw a square like the one below.
Our father here will be a man with brown eyes who carries the gene for blue. Mom will have blue eyes.
Enter the information on the parents. We use capital letters to symbolize dominant genes (in this case a capital “B” for brown), and lower case letters to symbolize recessive genes (in this case a little “b” for blue).
Now we combine the parents’ genetic information in the boxes to find out how the children will look.
The results out of four children:
Let’s try some more. What if both parents have brown eyes, but carry the gene for blue? You’d get the following:
Now let’s see if you can do some on your own:
Give yourself a big pat on the back if you got them right. Now we can move on to the third form of gene expression…
Sex-linked genes act just like recessive, except they also bow to the will of the sex of the child. To understand sex-linked genes, it helps to know what they look like. Genes are just sections of DNA code that tell the body to do something. DNA itself is coiled tightly and contained in a structure called a chromosome.
Most people already know that in humans the man has an X and Y chromosome and the female has two X chromosomes. This is the reason that the only the man can determine the sex of the child. Women can only provide X chromosomes while a man can provide either. The X chromosome is physically bigger and can carry more genetic information on it than the Y chromosome. This is where sex-linked traits come in. Because the X is bigger it means that some genes carried on it are not carried on the Y chromosome. These genes can be expressed even without a corresponding partner on an X chromosome. They also cannot be blocked out unless there is another X chromosome carrying a dominant partner.
One human sex-linked gene is hemophilia. Hemophilia is a disease that keeps a person’s blood from clotting when they are cut. Because hemophilia is a sex-linked disease, most of the people who have it are men. Women can carry the gene for hemophilia but will not be affected by it because their second X chromosome will block it out with a healthy gene. Women must have two copies of the defective gene to be affected by the disease. Inheriting two copies is highly unlikely. Since a man only has one X chromosome (from his mother), if he gets a copy of the gene he will have the disease. Mothers carrying one gene for hemophilia have a 50% chance of sons being born with the disease. Here’s how it works:
As you can see, at least half of her children (boxes 1 and 2) will inherit the gene. One, a daughter, will only carry the gene. The other, a son, will have the disease hemophilia. The last two children (boxes 3 and 4) will carry healthy genes. Of course these are only the possibilities of what her children could end up with. She could very well end up giving it to all her children or none at all. It’s just a matter of chance. Now let’s take a look at what will happen if this woman’s hemophiliac son has children with a healthy woman:
ALL the man’s daughters will be carriers and all of his sons will be safe. The daughters could end up passing it on to their children. It is in this way that sex-linked genes can disappear and reappear from generation to generation.
Not all sex-linked traits are bad. Many of the colors you see in birds like lutino, pearl, and cinnamon are controlled by sex-linked genes. But before we can get into bird sex-linked traits there’s something you need to know: BIRDS DO NOT HAVE X AND Y CHROMOSOMES. Birds carry different sex chromosomes than humans. Instead of X and Y, they have Z and W. That’s not really important and we’ll stick to X and Y for our examples here. What IS important is that in birds the male carries two of the same chromosome (like XX) and the female carries two different (XY). This means that it is hens who determine the sex of the chicks in birds and that they are more likely to show up with sex-linked traits. The punnett squares and such all work the same way, you just have to remember to reverse the X and Y’s from that of humans:
Let’s try another punnet square, this time for birds. I have a lutino male and I want to see what I’ll get if I breed him to a normal hen. In order for a male to display lutino he has to be carrying it on both X chromosomes. We’ll color the lutino X’s with yellow to tell them apart.
All of the babies will be carrying a gene for lutino. The cocks, however, will only be “split” (carry the gene) and will not show up lutino. The hens will all be visually lutino because they have no second X chromosomes to block out the gene.
Let’s try one more. This time I want to mate a cinnamon hen to a cock split to cinnamon (carrying but not displaying). She will only need the one gene to show the color.
Half of the babies will be cinnamon (both sexes), one will be split (a male) and one will be normal (female).
One of the great things about sex-linked traits is that they may allow you to sex birds very young without having to DNA test. A male that is carrying lutino, when mated with a hen that is not lutino, will always have lutino daughters. If he is lutino himself then ALL his daughters will be lutino. If he is not visibly lutino then any lutino you find in the nest will be a hen for certain.
Sex-linked genes allow you to get visual colors much faster, as you only need a male to be carrying a single copy. This is why Pineapple green cheek conures are more common than colors like turquoise. Pineapple is a combination of two sex-linked colors, while turquoise is recessive. However, it also drives up the price of males who show sex-linked traits. Hens are far easier to come by. To get a visual male you need two copies of the gene.
Well that’s it for now. Congratulations, you survived part one!
All articles and images contained on this site are ©2017 by Karen Trinkaus and may not be reprinted or used in any way without the author’s permission.
Birds are extremely messy pets. Even with products like seed guards they will still get food and poop everywhere. Here are some helpful tips to keeping your house clean.
Secure the Area
One of the first things I did after moving was start prepping the bird area. Even fairly neat birds can splatter food on the walls and that stuff turns into cement when it dries. Buy some cheap clear plastic shower curtains and tack them to the wall behind your cages.
Consider your floors. Poop is very annoying to remove from carpet, especially if it has had time to dry. For carpet I have used chair mats with great success. They are easy to take outside and hose/scrub. If you have a large cage you will need several to cover an area greater than your cage. This may cost a bit more but the mats last a long time so it’s a good investment. I have mats that are ten years old and still going strong.
If you have a flat surface like wood, vinyl, or tile it will be fairly easy to sweep clean and spot scrub. Still, it can be useful to protect these areas (especially wood). Chair mats also work for this (just make sure you get the kind meant for flat floors), but you can also go cheap with plastic drop clothes or more shower curtains. You can use painters tape or masking tape to keep it from shifting around.
Preventing Food Splatter
High dishes will result in a wider “splash zone” from the cage. If your dishes are on the floor the the cage the mess is easier to contain with shielding like cage skirts. However, lower dishes are also more at risk from fecal contamination, so you need to be careful about placement. Most cages these days come with outside access feed doors about midway up the cage.
Covered feeders are another option, though one must be careful that a bird cannot get trapped inside.
Minimizing Poop Damage When Out of the Cage
Unless your bird is always on a perch or in its cage, you will have poops around the house and probably on your person. Some people train their birds to poop on a specific area. You can also teach your bird to poop on command, though this can lead to problems if it refuses to go when no command is given.
If your bird is allowed to perch on furniture like couches or chairs, a cover should be used. Towels and sheets will suffice but if you want to spend more on fancier covers you can do that too. We have a long runner style rug behind the couches to catch stray poops.
For yourself, there are a couple of options. I personally use a “poop shirt.” It’s just an oversized t-shirt that I no longer care about that is worn over my actual shirt. This way my shirt is protected and I can just remove the poop shirt when I’m done carrying my bird. Many other people use a sort of shawl or shoulder cover like this.
© 2017 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.
This is intended to be an emergency guide. It is not comprehensive! If you plan on handfeeding routinely you need to get a copy of Parrots: Hand Feeding & Nursery Management by Howard Voren and Rick Jordan. In Australia they prefer Incubation & Handraising Parrots by Phil Digney.
What does your baby look like?
Feather development varies from species to species. Some, like Indian ringnecks, move from naked alien babies to pinfeathers with no real down stage. LOOK at your baby and see what level it is at. #1-3 NEED SUPPLEMENTAL HEAT.
Temperature for baby
You MUST have a way to accurately measure temperature! Make sure your thermometer (or the probe reading the temperature) is placed in the same location as the chicks, otherwise your reading will be off.
WATCH your baby
How to Keep Baby Warm
Ideally you would have a proper brooder like this:
You can also make low budget versions with fish tanks/critter keepers and a heating pad or lamp:
Here are some links on how to make a brooder:
How to Feed
The table below is not mine, and it is made with cockatiels in mind. Larger species will eat more and develop at a different rate. Adjust accordingly!
I personally listen to the chicks. If they’re crying a lot and the crop is empty then they need to be fed. If they’re refusing food (and it’s at the right temperature) it may be time to bump back the feeding time. Listen to your chicks!
Please visit my YouTube channel for videos on brooding and handfeeding, or watch the playlist below:
Fledging & Weaning
Once the chick is fully feathered it begins the fledging and weaning process. Chicks may start to refuse feeds and drop a bit of weight prior to fledging. This is normal, as slimmer birds have an easier time flying. At this point you can move them to a cage and start offering foods. I begin with soft, warm foods or things that are easy to manipulate. You want to offer a large variety of foods and textures- vegetables, pellets, and seed. Initially food will get picked at and stepped on but eventually the chicks will learn to eat it.
It is important that all birds learn to fly properly. If you plan to clip your bird’s wings, give it time to learn to fly well before clipping. It should be able to take off, land, and fly with purpose and accuracy. Once it can do this for some time you can clip.
© 2017 by Karen Trinkaus. May not be reprinted or used in any way without the author’s permission.