chicken being peck or disease

[kristy6210]

I got chicken 8 weeks ago and about a week and half ago the other chickens were pecking at this one and i had to separate her/him but now i’m wondering if she has mites or some disease. They always go after this chicken

 

[Eggcessive]

How old is she? Is she close in age to the others? Is she low in the pecking order, or is she acting differently, or having problems walking? Do they have enough room, or do you have a bully. What are you feeding them?

 

[kristy6210]

i do have a bully i let them out everyday except when i work and they are getting big for the cage. I worked on day and the next morning went out there and the mean chicken i have that bites me was pecking her back and neck. so i moved her to another cage with other chickens but since she was already bleeding and scabbed they pick at her also so now she’s by herself. They eat purino starter and they are all the same age. Does it look like mites or lice? or just bullying

 

[kristy6210]

She acts fine when alone but head in the corner against pen when with other hens they trample over her or him all the time. they are 7 weeks