Frizzle Cochin Bantam- Green feet?

[1AcreRooster]

Please Help....
I purchased a pair of white frizzle cochin bantams, one has yellow feet the other has green feet, never seen green feet before. Did I get something else?

 

[jakmallex]

I have some mixed breed frizzle babies that ended up with green legs/feet too. Here's a picture of one of the smooth feathered chicks from the same parents. Both parents have black legs/feet so I'm not sure where the green came from.

 

[Easter_pink_silkies]

foot color (as well as skin color) varies from chicken to chicken-depending on the breed.