We got this hen over a month ago and after the pecking order was established with our existing girls she started crowing in the mornings like a rooster for over a week getting louder and louder. She stopped crowing yesterday and didn't crow this morning. I've been doing a lot of online research...
My girl has the yellow substance in the back of her mouth as well and we have been to a specialized bird vet twice where they cleaned it out but did not mention it being canker. They did take a swab to test for "Trick" (common pigeon disease) and it came back negative for that. They didn't have...