Oh, one other question Mad Scientist. What breed do you suspect the cockerels are? I've had bad luck with RIR and Welsummer roosters. LOL.. I would still take them any way but they may end up dinner. Not sure if that is an issue for you are not.
Not an issue for me, just feel bad asking dh to cull. Since we don't eat them I hate throwing them away. I think the suspected cockerals are a welsummer and an ausrra white.