I have two roosters that for years now I have been bring them in at night and put them on the sofa. they just sit there quietly while I clean the house have dinner and watch a movie. then at night before I go to bed I put them in their room. lately though I've noticed that one of them falls off the sofa. I would have to come into the room picking up from the floor and put them back on the sofa. I did not understand why he was falling off the sofa. Last night I held him while I watched a movie and noticed he would slightly spread his wings then start shaving and making some clucking sound and start to tip over. I would hold him in the blanket to keep him from falling off me. he did that several times to throughout