Not that i known of. This is the first time we had this issue since we started creating chickens 3 years ago.
The Wyandotte hen in the photo died today.
In the last two weeks, 4 of my chicken have died to a unknown disease.
1. They are well fed
2. They live in a fenced area about 10x30m
3. The first one that died was a less than 2 year brahma. She was coughing/sneezing more than usual (she always have been sickly) in the day before she died.
4...
