We have the same exact issue here. 2, 8 week old Rhode Island Reds & a 5 month old Silkie hen. Or so we thought until the silkie started crowing a few times every morning. So we gave her/ him to a friend where he/ she is alone in a own & noone there has heard it crow....
So our Silkie only crowed a few times in the mornings & since we brought him to a friends it apparently hasn't crowed at all. I was told that sometimes they will become an alpha female & crow like a rooster? Anyone heard of that?
We are only supposed to have a few hens so we got 1 silkie to start off with & were told by a few collie breeders that it had all the markings of a hen. A couple of weeks ago it started cock a doodling. My poor daughter is devastated. I am too because he was so so sweet. Do they get very loud...