Hey guys! I currently have a Grey Japanese Bantam hen who is sick. I don't know with what. She is currently in a cage in the garage so I can check up on her. I found her in her coop... she has been opening her mouth over and over gasping and making an odd heaving sound. Everytime she does it she extends her head forward. I don't know what it is or what to do. Any help or suggestions would be appreciated. Thanks!