Blood on foot feather skin

[MegsEggsx]

Hi all,
Just noticed one of my little langshan bantams has a weird line of blood along her leg where her feathers should be it looks like they have been pulled out because there are very few feathers on her feet now. It is along both legs. She doesn’t seem to be in pain but I would still like to know what is going on, any ideas?

 

[Wyorp Rock]

How old is she?
The red line it likely hormones if she's in lay.

 

[MegsEggsx]

She is a little over a year old been laying since May 2020.