Please help me!! I have a chicken losing her feathers and I dont know why.

[Eviethechickenmomma]

Molting

 

[Wyorp Rock]

She does peck at the base of her tail feathers and there is some dried blood there but other than that she does not peck at herself.

One picture is of her feet because I know some mites can cause the scaled to raise on their feet but hers are not and the black stuff is just mud from being outside today.

3 years old, she molted around the last week of December and first week of January.

How many roosters do you have?

Feather loss pattern and regrowth would indicate she was bald before this. If she was molting last week of Dec to first week of January, she's just now really starting to grow feathers in. It can take an average of 6-8 weeks from start to finish of molt.
So she's only what...5 weeks in?

She does have some broken blood feathers on her tail, likely that's what she was picking at.
I'd watch to make sure she's not being picked at and if you do have a rooster or roosters, limit the mating, since she's quite prickly and I'm sure uncomfortable at the moment.

Oh and her feet look fine to me