why does my cockateil puff up?

[gizmo101]

my cockateils puff up a lot and i want to know why they do it. its such a strange thing to do .any ideas?

[captwest]

Could be many different reasons, is it cold, in a draft? Fluffing up to keep warm.Could be getting ready to sleep, or it can be a sign of a sick bird. We really need more info to say, there several other reasons but if your bird is inactive and puffed up , i'd say sick,sleeping or cold.Maybe a vet visit is in order.

[entrancedbymyGCC]

I agree with CaptWest. Briefly puffing up is usually a happy, comfortable thing, or basically reorgainizng feathers, Puffing up and pinning eyes or appearing poised to bite is anger, and sitting quietly puffed up all the time I am told is a sign of a sick bird. It really depends on the context for the behavior.

[gizmo101]

yes i think its just a happy thing or coldness because its just really fast and only last a few seconds.

thx!