So we got 6 "Easter Egger" pullets, 6 "Red" pullets and 2 gray/black (possible Rock Island) straight run chicks. They are about 6 weeks old and they have been indoors until yesterday when the coop was finally finished. I am now seeing some behavior that has me concerned. Needlessly? Please tell me, I am a rank amatuer! Of the 6 white and black "easter eggers" I have 4 that are fighting - they all 4 have larger, darker combs than the other 2 and what I think are wattles. When I say fighting, I mean that they face off and run at each other, fluff up their neck feathers and 1 out of 5 encounters ends up in neck biting and feathers flying. The other 10 chickens don't fight at all and seem to avoid these 4 whenever possible. Could 4 of my 6 pullets be Roosters?