Red streak on lega, injury or normal?

[Winniethesilkie]

Hello. I have a 2 year old barred rock hen whos legs and feet have red on them. She acts fine and so does everyone else but wasnt sure if its normal? Thank you

 

[Kiki]

Doesn't look like an injury to me.

 

[Prince and Pavo]

Hello! That looks completely normal to me