Hi, Just returned home from a weeks holiday to find our Cockerel more than half dead. Very very pale, extremely lethargic and has light green diahorrea (water) Took him to our vets and he gave him some antibiotics and some other drugs. The poor guy is extremely thin but he is eating and drinking and has food in his crop. We have recently dealt with an infestation of rats (hey, we have chickens, gotta expect rats) but I am 99.9% sure there is no way the chickens could have got to the poison as it was in a closed and enclosed greenhouse. The Cockerels comb is very pale but is darker on the ends and very floppy. If it helps I can attach some pictures, but please, if anyone has any ideas let us know!! Just out of curiosity, are potato plant leaves in any way dangerous to chickens as they have access to these. Cheers.