I have a golden coturnix that has regularly been pecked on; i removed her from the flock and put her in isolation four days ago and she now has most of her neck covered in pinfeathers and seems quite content. today I came out and on the top of her head, which has not been improving, had a black substance coating the top. it looks quite noist and she did not like me touching her head with a swab (normally she is quite docile) to clean the infection. she is now inside, and i treated her head with warm water cleaning and then put some polysporin on it. any help is appreciated thank you.