Hi All! Last week (while it was rather cold here) I noticed that my prize Black Copper Marans Roo had very purplish coloring on his comb and waddle. I thought that he must have stood out in the wind too long and been frostbitten. But for the last couple of days, he has been noticeably sickly - keeping his head down and pulled in, feathers held slightly out, shoulders forward. Today he pooped while I was there and it was very bright green and a bit chunky, like it had not been digested. Help! What does my poor man need? They have access to grit and calcium, and I feed whole oats, cracked corn and layer pellets. They have been on this feed for months, and no one else has any problems. Any ideas?? Should I gave them a day or 2 of electrolyte in their water? I have some leftover from when they were chicks last spring... Thanks!