I recently got 4 chicks from a family member. Their dad was a purebreed black orpington and the mother was as much of a mixed breed as you can get. I have heard that sexing orpingtons is very difficult so I need some help with these. I was told that half the chicks had that hatched in that clutch were definate roosters and had already been culled and these 4 were ones he thought were probably pullets but im not sure. I intend to wait until they crow or lay but thought i may as well ask as well. I was told they should be about 7 weeks old but most chicks i have had before have feathered more by then but i have never had orpingtons.