Is it odd for the big size difference? They're the same age. I know they're young for sexing - I'll just wait until crowing or laying begins! i sure do love how sweet Silkies are!
It's not odd for chickens to be different sizes. Right now I have about 10 chicks that all came from the same mom and they're all different sizes You'll probably be able to tell when they get a bit older wether they are roosters or hens by looking at they're combs Silkies are quite sweet! I love how different looking they are. They're unlike any other breed.