I have 4 little buttons. We hatched them ourselves and are enjoying them. I have a standard silver roo, with a large white bib, who is in with a tuxedo hen (I know she is a hen because they mate). I have a tiny little roo, he is blue on top, red on bottom and his head is solid black (no white markings). Then I have a tuxedo??? This bird is half white and half light brown. It has feathers around the vent area and they are not rust colored at all. I thought it was a hen, and housed it with the black headed roo, but no action happening there and it isn't laying eggs. The silver and black headed roos both make the growling crow I've heard is characteristic of roosters. They puff up their little necks and bend over, extending their necks and puff and growl. I have never heard this tuxedo growl nor assume this posture. The roos also make a calling sound that sounds like "caw, caw, caw". They stand very upright when they do this, and open their mouth to the sky. I HAVE seen the tuxedo do that. I haven't seen the other hen do it. Is this a roo behavior? I can't figure this bird out. These birds are 14 weeks. The other hen has been laying since 7 weeks. So tuxedo bird: no eggs, no rust on colored feathers around vent, no growling, but an upright "caw, caw, caw".... Hen or Roo????