My banty rooster has suddenly started keeping away from the rest of the flock...at least part of the time. He sits with feathers a bit ruffled. He is tame, so I can pick him up easily. He is eating and pooping normally. Something is not quite right, but I have no clue about what to look for. My husband thought he was twisting his head oddly at times. We have gotten a rare coldfront here, and temps have been as low as 20, with not above freezing during the day for 3 or so days. He stays with the others at night....in an area that is partially enclosed to protect them from the north wind. (working on a coop and run, but not finished yet). He is in the house now, and walking around, but still has his feathers fluffed. I'm hesitant in taking him from 75 degrees in the house, to 21 outside, now that he has gotten warm in the house. Is that a problem? I also felt like his feet are hotter than normal....they were hot when I brought him inside. Do chickens have fever? I didn't see this unusual behavior until the cold front came in. I wonder if the cold might be getting to him. The others seem OK. If he had worms, would his poop still be normal? Hubby brought two new chickens in a couple of weeks ago...the hen developed a prolapse right after we got her (!!!) and I thought she might have some infection. Using hints from BYC group, I got the prolapse back in place (took two tries on different days), gave her Pen. G for 4 days, (Thank you Speckledhen!!!) and one squirt on her neck, of Ivermectin. Something worked. She laid an egg today (we threw it away of course, because of the Pen.) with no prolapse. I guess we should give all of them the Ivermectin just in case they have gotten worms. But....I am just wondering what could be wrong with my little rooster. He is a real favorite of mine. Thank you!