Ancona chicken has 5 toes on one foot?

[thepinkcollie]

So while cuddling my chickens I recently noticed that my Ancona laying hen has 5 toes on one foot? She seems completely normally other than the fact that only one of her foot has an extra toe.

 

[A_Fowl_Guy]

Just being polydactyl lol!

 

[Gray Farms]

It could be spontaneous, but its more likely she has genes mixed in from another breed way back in her breeding.