OK chicken friends, what's wrong with my babies? Polish chickens, about 7 weeks old, 3 of them (to start anyway, now just 1). Lethargic, normal poop, head nodding...one dies and the one other looks bad but seems to perk up...6 hours later, not doing well. Lying down, can't stand, falls over, kinda seizes and dies. ...one left...he's eating and seems to be doing OK, though he is kind of freaking out being alone now...my first thought was cocci so I started them on corid this morning. I have 6 adult girls but they are in the backyard (babies were contained in the garage). I think I have been pretty good with cross contasminating but the babies have spent some time contained in the backyard. Any ideas?