Why is my bird losing so many feathers? Is it a health concern?

Harry could be molting, which is a normal thing that occurs about once or twice a year. This is when your bird loses their feathers and then replaces them with new ones. You can check if this is the case by looking for "pin" feathers, or what looks like little pins growing out of the skin (these are the new feathers coming in). Other things to look for include making sure Harry is on a balanced diet, and checking for mites or other skin issues that can also cause feather loss.

Feather loss can be from any number of things, so finding the underlying cause is best. Molting is a normal loss of feathers that occurs 1-2 times a year and all the old feathers are replaced with new ones. You will see "pin" feathers appearing on the skin (look like needles or pins) to indicate this is a molt and new feathers are growing in. Making sure Mithu is on a balanced diet can help ensure he grows in new feathers. Skin issues such as parasites, infections, nutritional issues, etc can also cause feathers to fall out. Treating any visible wounds, making sure Mithu is on a balanced diet, and using a mite spray to treat any external parasites can help. Illness can sometimes cause feathers to fall out either due to a lack of nutrition or from the illness itself. If you can't find an immediate problem, having a vet examine Mithu is best to rule out any illness. Boredom and stress can also cause feather plucking, which may make it look like the feathers are falling out. Making sure your bird is kept in a quiet, stress-free area away from noisy pets and people, and providing lots of enrichment such as toys to play with and chew on, fun treats, and time spend together can help. In some cases, an Elizabethan (e-collar) may be needed to break the behavior if it has become a habit.

It is most likely that your bird is either picking out her feather because of stress or boredom or that she is molting. Since she is eating well and otherwise acting like herself I think it is less likely that she is ill. Make sure you are feeding her a well balanced diet of pellets, small amounts of fruits and veggies and minimal amounts of seeds. If she continues to lose feathers for more than a couple weeks or if she stops eating, then I would recommend taking her in to be evaluated by your veterinarian. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

If he is not actively pulling out the feathers I would not be worried. It may just be a normal molt for his age. You could always get a feather supplement to help him along like this one from Nekton: https://www.amazon.com/Nekton-Bio-for-Bird-Feathering-150gm/dp/B0002DIM3C?th=1

Molting time is different for each individual bird, so yes, molting is possible if it is that time for Sheephony. You may see new feathers, called pin feathers, growing in to replace the old if this is the case (they look like little pins sticking out of the skin, hence the name). Other potential causes of feather loss can include nutritional issues, parasites on the skin, infections, illness, etc, so if she seems otherwise unhealthy or ill, or you aren't seeing new feathers growing in, scheduling an exam with your vet is best. In some cases, birds will also pluck feathers if bored or stressed, so adding some enrichment and making sure Sheephony is kept in an area with low stress may help as well.

Baby birds can lose feathers in what looks like a molt as their adult feathers come in. If she is molting, you will see new feathers, called pin feathers, sticking out of the skin (they look like little needles). If she is otherwise healthy and active and on a balanced diet I wouldn't be too concerned, however you did mention she is a bit lethargic. If she is losing feathers and isn't growing in new ones, and remains lethargic or begins to decrease her eating/drinking habits, have changes in stool, etc, then seeking out an exam in person is best to rule out any issues such as parasites, illness, nutrient issues, etc that could be causing her symptoms. Keeping her eating and drinking, warm, and away from any other birds that may pick on her if she is ill can also help until you can get to a vet.

It looks like he may be losing some downy feathers, which can happen during a molt or when adult feathers are coming in on younger birds. If it's a molt, you'll see new feathers growing in that look like little pins/needles poking out of the skin (hence the name pin feather) -- though these are usually better visible for large feathers such as tail/wing. If you're not seeing this, he seems to be picking at his belly a lot, or you see issues such as red skin, parasites on the skin, etc, a vet visit is a good idea to rule out any health issues.