It is a roller pigeon that was about 6weeks old August 2012 . We noticed tonight that he had poop on his wing and that he ran not flew away when approached. Then we realized he does not seem injured or unalert and wants to fly up with the others but flaps his wings with not enough power to fly. He has chick grit and I have corn for warmth to eat. I have a 5gallon container of water atall times and an inside loft. The feed is for wild birds from rural king and lowes. I don't have a place to buy pigeon food. I have been worried about that for awhile. The y seem to have gradually had poop that is more clear and a little bit runnier than when I first got them but I am a beginner and can use any advice anyone can give. Thanks in advance for aloof your time and concern to help me.