mites or lice

Hi! These last 2 weeks, my hen has been losing feathers and itching all over, specifically her neck, and has been eating/drinking less and less. At first, I thought she was going through a slow molt with all the itching and feathers she was losing, but many are the fluffy down feathers. She's...

My 1yr old Barred Rock hen suddenly has no feathers on her whole breast area. There's some blood on the area like she's pecking at it. I just got her last month. I hold her and sit with her every day - how could I have missed this?? She's gentle and lovable, and my 1st and only chicken. I'm...