Bob is a one year old pearl gray. When I went to let them out this morning I noticed he was not acting normal. He was walking slowly, sluggish, no limping. I tried checking him, but he really doesn't cooperate. I don't see any visible signs of injury, blood, or unsettled feathers. He seems to be keeping his head pulled in instead of the normal outstretched neck when walking or standing. I locked them back up in the coop to see if he was eating. I gave them all some broken up bread and soaked a piece with vitamins which he did eat. I have not been able to catch him pooping yet so not sure how those look. He is pretty much resting up on the roost. There is no wheezing or drainage from nose or eyes. Any suggestions would be greatly appreciated.