Not a Silkie, but my RIR roo does this too. I've looked at his foot, and checked different threads to see pics of any diseases or abnormal things... His foot looks like a normal foot... I think its a roo thing. My D'uccle did it too before he was rehomed.
Thank you, that makes me feel much better.
Hens go broody when you don’t want them to… and won’t go broody when you do.
glad to be of help.
