strange sounds and puffed feathers
I have a question, my parakeet/ budgie (one of two) has started making strange sounds and has had its feathers puffed up very often for about a week or so now. He also seems to be breathing heavily or possibly shivering. The other (female) has been staying very close to him and is fine- no unusual behavior. I have owned various budgies for 20+ years and do not remember ever having this occur.
I am wondering if he may have a cold or be cold? We have had cold weather outside but I keep the house at a constant temp all the time. The cage in not near the door. I put a blanket over the cage at night, but forgot once recently. Do you have any thoughts? I thought maybe a lamp/ light close to the cage to help it keep warm IF that is what it needs- not sure? Both are eating and drinking fine. Im very confused, any insight you have would be appreciated. Thank you