I have 1 tux roo, 2 tux hens, 2 brown hens and a golden hen all together in one pen. I culled down to just the 6 for the winter.... I have not heard my tux roo crow in a couple months though - since around the time the hens stopped laying. Do they not crow in the winter? They all have that wonderful chirpy noise that they make though - I love that! They sound like frogs or crickets sometimes, LOL.