Hello,
My name is Marilyn and I live in western Oregon in the USA. I have about 20 chickens right now of many kinds...barred rocks, rhode island reds, cochin bantams, b.b. old english, a black rosecomb, a brahma and assorted bantam crosses that my old english hens raised.
We got chickens for...
Is there an update on the hen?
I would definitely invest in a necropsy if you can at all afford it. Are you near an ag department or school? Maybe there is an agricultural extension office who could direct you to a good pathologist?
I would suspect something like lymphoid leukosis more than...