I have 15 hens, no roosters. My girls are 2-5 years old. I keep them in a coop with a 50' by 50' yard to run around in. A few years ago I had 2 chickens with bumble foot. I watched how to treat them online & both got better. Since then, inspected my hens whole body every couple days to check for any signs of poor health.
About 6 months ago, one of my hens suddenly stopped eating and started getting diarrhea. The poop built up & was stuck to her feathers. I came back the next morning to find her breathing heavily. When I picked her up she started to vomit, started convulsing & died in my arms. I have been even more observant of their eating & drinking to make sure nothing happened to the others.
But a week ago, when I went out to feed them in the morning, another hen was laying there dead. When I picked her up I noticed she had some poop built up in her feathers like the other hen but not as much. Both of these hens vent was clear & didn't appear to have anything stuck.
So now today, I noticed another hen sleeping a lot. So I went to take a closer look. Her comb is swollen & pale, her feet are all swollen, similar to the bumble foot, but the entire foot has swollen areas. One of her eyes is closed & looks a little swollen too. She's also losing feathers but the dozens, but has not been molting or pecked by other hens. Im expecting her to die today.
Any ideas of what I should do? Please don't judge, I try to take very good care of my birds, they are my family.... I did call around to all the local vets but only one would even see a chicken & they told me that it would cost a lot of money to see her.... which I would be happy to pay except, they also said that they are not experts with chickens & probably couldn't help but could just help to put her down humanely.
Added info: The hens that have gotten ill are NOT the same that had bumble foot. Their breeds are: Wyandotte, Sexlink and the one ill today is an Americana. I have 2 broody polish hens that have been quite aggressive.. many of the hens are missing feathers from the polish hens pecking them on the nests.