We have a small 2.5yr old flock of 3 BO and 3 Ameraucanas and egg production stopped about 3 weeks ago (oh the shame of having to BUY eggs!). One of the Ameraucanas have dropped a lot of weight and keeps trying to sleep in the nest at night but shows no other obvious symptoms. She's eating and drinking and free ranging during the day and seems otherwise fine. The main reason for my concern is that I lost a hen earlier this year to very similar symptoms and it was a pretty swift decline. This particular hen was a rescue that I had found in a strip mall parking lot the year before (true story, I can't make this stuff up). When we brought her home she was quarantined and checked out by a vet and up until the week before she died was a champion layer (I think she was a golden comet but really not sure). Has anyone else had this happen or have any suggestions on what it might be? I haven't managed to see what her poop is like but will be separating her tonight so I should have some samples tomorrow.