I had 3 pea chicks in with my male they were getting along great then one night all 3 chicks disappeared there wasn't any feathers scattered or any body parts in the pen and the pen is completely enclosed could they have been eaten by a predator or could they have been stolen ? My male has some of his neck feathers messed up as well. We have put a chain and padlock on the door of the pen. Any advice about possible predators would be great we are in Tennessee.