Lol "pigeon feet"
I wold like to see a picture.

Not only do they have black feet...they also have blue eyes!

Can you get a picture of the eyes? I think Susanne would like to see it.

Thanks, I'll tell Susanne to come take a look!

Susanne looked at the pictures. I told her that mom was lutino and dad was cinnamon, and she thinks the color you're seeing might be a hint of wine coloring from the cinnamon split. Since dad is cinnamon, all girls will be visual cinnamon and boys will be split to it. Grey feet are more common in birds without splits, but it's possible to have grey feet in birds that do have splits. I've had babies with grey feet, and all of them were split to whiteface at the very least and probably to cinnamon or lutino as well.

Thank you!

So that means that they are all normal greys? I see a blue tint on all of their eyes.

Based on the pinfeathers that I can see, they look like normal grey. The grey feet are an indicator too.

Hey, maybe you created a new mutation
Blue eyes, black feet, wait and look out for the green cheeks

Wouldn't green cheeks on a cockatiel be cool? Not to be confused with a green cheek conure.