So a couple weeks ago I had an attack on my chicken coop killing most of them except for 5 chickens. I've sinced put them in a smaller pen until the bigger one gets fixed to keep them safe. Unfortunately, somehow during the attack my one young chicken got a cut in his beak. Looked like a normal cut with blood built up underneath so I left it alone because it looked fine and like it was healing but tonight I noticed that the entire top beak FELL OFF ! I have no idea what to do now. Anyone have any advice. Still looks happy and healthy but Im worried.