I’ve noticed that several of my girls are missing feathers on their neck, specifically under their chins and on the sides of their neck. Not the part you’d expect missing feathers from an over eager rooster. I’ve checked them for lice but they look clean, and there are no wounds on the parts with missing feathers. They seem completely fine otherwise, happy and energetic with a good appetite, so I have no clue what could be causing it. Anyone know what could cause this kind of bald spot on their neck?