So far everyone else looks fine. We're keeping close watch.
The odd egg makes think that your theory is right.
Sad. We will miss Henrietta. The feed store gave her to us as a chick for free because they didn't think she'd make thru the week. She showed them!
Our flock had 8 chickens, two of which were Araucanas. They are slightly over one year old. Our white Araucana had been acting a little odd for a couple of days -- almost dazed, inattentive when we came to the coop -- but no other symptoms. Yesterday morning I went out to the coop and found...