Someone I know asked me to take some silkie eggs that her hens were on because she was going out of town and was afraid they would hatch while she was gone. There were 11 and after candling them,i saw that they were at 3 diffeent incubation stages. I stuck them under a broody anyway and so far 1 has hatched. I noticed today that it only has 4 toes. I know she only has silkies(someone gave them to her but I haven't seen them), so how could that happen?Does that sometimes occur or is it possible that hers are mixed with something else. It doesn't matter to me, but I just wanted to know.