Why are my budgies lethargic after a cage mate died and new bird?
That is a lot of questions! And one I don't really have a good answer to.
Sudden death can be caused by a number of things including illness, parasites, infections, nutritional issues, etc. It's always a good idea to first make sure the environment your birds are in is kept clean, and that they have access to a balanced diet and fresh water at all times. It is also a good idea to quarantine any new birds for a few days before introducing them to the other birds you own in order to prevent the spread of any illness.
Stress from being put with strange birds, recently re-homed, switched to a new cage, etc can also cause a bird to act ill. Making sure they are in an environment that is free from harassment by other pets or people, is in a warm-draft free area, and that all birds can easily access food, water, perches and sleeping space is best.
If you suspect one or more birds are ill it is best to separate them immediately into a hospital cage that is kept warm and with easy access to food and water to prevent the spread of illness and to keep any sick birds from being picked on. Seeking veterinary care to check for the cause of their illness is also a good idea.
Updated on September 23rd, 2025