I had 6 giant cornish hens that were hatched at a school in Nov. 2008. The other day 2 were bleeding alot! I thought a animal had attack them. I noticed the one had a long bloody thing hanging out of his bottom dripping blood. Both died that night. Now the other 4 all seem to have bloody bottoms to, but are eating and drinking ok. I am starting to rethink my theory that it maybe wasn't an animal attack. I do have 20 others chickens, they are on the smaller scale and all seem fine. Help please! I have had chickens for a long time and never had this problem before.