I have been having some birds getting sick. I bought a pair of chickens from a friend, and it turned out that the pullet was verrrrrry sick. I had them a week, and she was almost dead. I culled that pair, but it was too late. I have lost 1 hen already, and have 4 others that are showing symptoms. I'm almost positive this is what they have. Two of the hens have bubbly eyes. One pullet just stands around being fluffy, and she looks to have difficulty breathing from time to time. The other hen has just yesterday started acting wierd. She just doesn't look 'right', ya know? Anyway, I know I need to do something about this. I did have the sick ones quarantined, but obviously not good enough. They were inside the barn, in a raised cage, next to a trio of cochins I have had for about a month. All the other birds that are sick are also in that area, by their choice. It's the 'hang out' for the hens that don't want to be messed with. So my question is, are all my birds affected? I have some that stay outside, either in tractors all the time, or in tractors at night, and dont go anywhere near the barn. Would they be okay still? Some of these are my son's silkies, and he would be devastated if he lost them. Most all the birds that are affected are either in cages or stay in or near the barn, they don't really intermingle with the 'yard birds'. However, all the birds free range, except for a choice few that remain in cages/tractors. I also have some chicks in brooders, some on the porch, some in the house. Is it possible for them to get this, being completely seperated? I guess what I'm asking is, should I just cull them all and start over, or is there a chance that they don't all have it? Plus, it seems like I have read that guineas and pigeons are susceptible to this as well, and since I have both, would they have it then too? And what about the ones that don't show any symptoms of it? Are they just able to fight it better or what?