I have 5 (almost 4 months old) chickens. One I know for sure is a cockerel. The others have no characteristics of being male, except I noticed recently that, mostly in the morning when I let them out of their coop, the cockerel will fluff its neck feathers up and charge at one of 2 hens and the hens will do it back??? This is our first time raising chickens so I'm not sure what this means? Is it normal or do I have 3 cockerels instead of 1? He does not do this to our 2 buff orpingtons, only to the easter eggers. I know about pecking orders but would the hens compete against a roo?? If we have 3 roosters out of 5 chicks we would be heartbroken Any help would be SO appreciated! Thank you!