So I have a flock of 9 birds with 3 roosters (2 EE 1 silkie) and 6 hens 1 silkie 2 RIR 2 orpingtons 1 EE. The used to all come back to the coop together. Recently the EE roosters started trying to mate and now only 1 EE rooster the 2 RIR silkie rooster and one Orpington come back at night I've seen the other EE with the rest of the birds together but they don't come home at night. Is it possible the flock has split and between the two dominant roosters? Should I cull one of the roosters? It's getting close to winter so they need to come back to the insulated coop. Amy advice would be appreciated