A little over a month ago we got some new chickens from a farm. One of them, who is likely only a few months old, is extremely friendly but has some weird stuff going on. First of all, she is not growing like the others. I picked her up the other day and her breastbone is so sharp and she feels very underweight. However, she’s constantly eating and has lots of energy. Additionally, she has a very “short” neck—it’s kinda condensed and puffed up like that of a sick chicken, but she’s always looked like this and otherwise is acting normal. We named her Sleepy because she takes a lot of naps, but once she hears us coming she comes running for food. She also sneezes and gets very snotty only after eating, as if she has some sort of gastric rhinitis. This doesn’t seem to hinder her appetite though. Her behavior has not changed or gotten worse in the almost two months we’ve had her. Anybody got an idea of what could be going on?