I am new to silkies..........and while I was just outside moving some birds(several breeds) to their winter pens and a few to the "to be sold" pens......I was checking all the nest boxes. Ok, here's where I got slapped with the "boy am I stupid" hand. In a nest box for a pen that I had a silkie roo in (yes roo) guess what? You guessed it, 3 eggs......one was very warm! I was sure this guy was a guy!!!! Well, I got to looking at a Blue Silkie roo closer and Yes I noticed a difference. The blue's comb was 3 times as big and ear lobes were much larger also...........The other has a larger comb than all the other hens but hardly any ear lobes....................Come to think of it, I have never heard him crow!