We have both a rooster and a hen that we got when they were babies from Tractor Supply. They had both started out completely black when they were a few days old, but then around 3 weeks they both started getting brown on their breasts. The rooster continued getting brown until he turned into this. They are currently around 9 months old at the moment. He has 5 toes on his left foot, and 4 on his right. Several people before said that they might be a silkie- mix, but other than how soft his feathers are and the skin color/toes, he doesn't look like any other silkie mix that I have seen. He is massive compared to the other chickens, and the hen is larger/heavier than the others, too. They also dont have the signature tuff on the top that many silkie mixes have, nor the feathered feet. I could imagine that genetics could have something to do with this, but are there any other options it might be? Also, does anyone know what the other parent may be to cause this? I also recently hatched out some eggs from these two. The babies were black, but with white on the tips of their wings, as well as a white breast/throat. One of them, which we have since given away, had lost most of his white and was beginning to get brown on his chest early, the same way our rooster did. Another one lost the white on her breast, but has kept a white feather under each wing. They all had multiple toes, it looked like. A few of my leghorn/rooster crosses had multiple toes, but they all started out yellow with a few dark spots on them Personality-wise, he is extremely docile when being held, and isnt aggressive at all This is the female version of it. When she was a baby, she was also purely black. She has 5 toes on both feet, and grey/black skin. The eggs she lays are brown in color, and a decent size. Unfortunately, her personality is much more skittish. She doesnt like to be held, and jumped out of my hands shortly after this Thanks for your help!