My 6 month old Ameraucana was chased by a dog last week until she collapsed. She had no visable external injuries. I isolated her in the coop. She seemed okay the next day, but subsequently has sequestered herself in a nesting box and seldom emerges. She has been given water with electrolytes and food which she has reluctantly ingested. I have nudged her out, thinking she might be a bit broody. However, as far as I can tell, she is not laying. She pecks and hisses at anything and everything that comes near her. Both eyes are dilated and she blinks frequently. She just seems to be so angry. I isolated her to a crate, but that seemed to make her even angrier and she took the first opportunity to escape.

