Is my moulting dove's napping and low activity normal during winter?

If she is behaving normally otherwise, then she is likely molting. Continue to monitor for lethargy, loss of appetite or loose droppings. Make sure she continues to eat and drink normally. Keep her as stress free as possible.

That's a lot of changes at once for Dodo, and it's possible he could be a bit stressed out. Making sure Dodo has his own access to food, water, and perching spaces may help reduce stress. Birds do have periods of downtime during the day where they may nap, and they can do so as a group, so it may be you're noticing they're taking a collective nap, however after a bit they should return to normal activity. If anyone is constantly puffed, not eating or drinking, or otherwise appearing ill, removing them to a separate hospital cage, and keeping it warm and with access to food and water may help, in addition to seeking veterinary care.

If Sky's behavior has changed recently, and you are are also noticing a change in stool consistency without a change in diet or environment, then having him examined by your vet is a good idea. Some environmental changes, such as extreme heat may cause a bird to be more lethargic until it cools down, however they should still otherwise be eating, drinking and moving about some. Diet changes can also change the color or consistency of stool if there are colored pellets or different seeds introduced. It may be that he is still mourning the loss of his friend, and so is less active, however being completely uninterested in activities, having a change in stool without a diet change, or sleeping all the time are not considered normal.

Molting and growing new feathers can take a lot of energy, however if Mike has been lethargic and not interested in normal activities, or isn't wanting to eat or drink, it would be best to seek veterinary care. It's possible there is an underlying issue such as illness or injury causing it, nutritional problems, parasites, or even some deficiency from his body using up nutrients to create new feathers. Having a thorough exam from a local vet can help rule out any issues, and treat any problems to help Mike feel better.

Without more information, it would be hard to say. If they get sleepy once in a while like you've described, then it may be normal. Heat in the summer can also cause a bird to be sleepier. If you are seeing other signs of illness in addition, such as not wanting to eat or drink, never being active, or sleeping all the time, then a vet checkup to rule out any health issues is always best.

These can be early indicators of illness or injury. Birds will normally eat small amounts throughout the day and are quite active. An exam with your veterinarian or an experienced avian vet would be recommended to diagnose illness or injury. In the meantime, clean and sanitize Muthu's cage, bowls, perches and toys. Discard anything that cannot be sanitized. Keep him war and as stress free as possible until he sees the doctor. You can soak pelleted food in a small amount of fruit juice to stimulate his appetite.

Thanks for reaching out about Kiwi. A damage flight feather should not alter flight significantly, as they can fly when they molt. Lethargy and sleeping during the day (to conserve energy) are clinical signs of being sick, the question is why. Providing heat support in the 80-85 F range can give some support. Monitor fecal production by a total cage clean-out. Sick birds often act like they're eating but aren't. A veterinary visit is recommended to assess and provide a diagnostic/treatment plan. Multiple possibilities include ingestion of foreign material (metal, fabric, wood, etc.), metabolic concerns (liver, renal), infections (viral, bacterial) and others. Good luck.