I cant tell if these are roos or hens both have large wattles and combs compared to my other orpington hens one im am pretty sure is a rooster but he has such a small tail....so no judging! anyways neither of these is crowing or mounting hens....but niether in laying yet either. The chicks i have that are younger are both crowing and laying so im dont know. 1. blk orpington this is the one i question the most. I tried to get good pics of her by holding her and she didnt like. She is huge my largest chicken. 2. This guys im pretty sure is a roo although he has a small tail.