I have 13 BO hens, we brought them home as chicks last April. I'd say less than half started laying before winter hit, then they cut back. Now, they are starting production again, I get about 8-9 eggs a day now. I was out feeding and I noticed one of the girls looks a little strange. Like the feathers on her head and neck aren't full. She looks like a pin head lol. Is this normal, or is there and issue here? This is a normal looking hen. This...is the strange one.