can u tell me whats wrong

[karhernandez33]

i dont have a pic, but this chicken i traded a roo for a hen , not sure on what she is.all white red face

she is the one in front.....

anyway...she is huge no feathers on or around vent.....pooping,eating,and drinking good.

 

[MMPoultryFarms]

More then likely your dealing with mites or lice. there are some that even eat the feathers. you can treat with several things. Adams flea and tick spray for cats kittens dogs and puppys, Or Diatamatious earth Food Grade, you can use 7 Dust as well make sure to clean all the coops out and bedding as well.