Anyone claiming them to be yellow foot would be inexperienced, being that they're obviously lacking the two large prefrontal scales. Are these a certain variant/locality of red foot? I have a female like this that is VERY yellow.
I participate in latin tortoise forums (Im latin, from Puerto Rico) and I have seen these yellow redfoots mainly in colombians owners. I might say that colombians redfoots are yellow...(Mostly)
This is typically a Colombian redfoot tortoise with yellow head and yellow feet, native to the fothills of the Sierra Nevada of Santa Marta in Colombia. I've got an old one, here it is :
Those are very nice! I wish I had the room to start some locality projects. How do the Colombians compare in size and shape (on average) to the Surinam's and Brazilian's?