Has anyone ever had or seen a chicken with dark spots appearing on it's shanks/feet? I noticed them on one of my hens this afternoon. I inspected her closely as a result and found nothing unusual. I ran my finger over the spots because I was first thinking they might be scaley mites but they're no different than her normal leg scales. Some even look like they overlap scales so I'm sure it's not mites. We had a lot of rain recently and I was reading on one of the threads here that this sometimes occurs during wet weather but it didn't conclude what it was. Anyway if anyone has any ideas I'm all ears.