[Pukamaroo]

Hello! I have two cockatiels. One is probably about 2 and half years old and the other only a few months.
My older tiel wasn't tamed (sold to me as a "breeder" hen when she was 6 months old) even in the slightest when I first got her. She is now pretty used to me and let's me hold her and groom her a little.
Anyways, because she is so timid and doesn't like to be handled, I never really noticed until today that her back inside toes on both feet look extremely deformed and lay sideways. Or maybe her toenails are deformed. I don't think she even uses those toes honestly.

Btw, she has no issues climbing/perching/landing(for the most part) so I don't think cause her any pain.
I just want to get other's input in case anyone seen something similar before

I have 3 images of her feet and the last picture is of my younger male's toes for comparison to show just how abnormal her back toes look.

 

[tielfan]

This isn't normal but I don't know the cause. Birds that have a poor diet as babies often have toes that lay sideways, but this usually involves all the toes, not just the inner back toe. It isn't correctable.

The outer toes are more important for climbing, walking, and gripping, so this isn't a major disability. There's probably nothing that you can do about it, but if it doesn't bother her then it isn't really a problem.