If by 6X4 you are referring to feet, that is not a coop made to hold 15 birds.........which is quite likely a contributing factor to the issues you are seeing. When resources are limited (ie space) the value of those resources are increased to the possessor -- with chickens the less of a resource there is the more fiercely the top birds will enforce their position in regards to possession of the resource.The bullies are pretty much all of my older birds with the exception of buttercup, ive never seen her do anything mean. The primary aggressors are snowflake, silvia, sativa, indica, and sissy. But thats most of my flock, i just wish there was a way to put them in their place. Was thinking about trying the trick ppl do with aggressive roosters hold them upside down under my arm or something
my coop is 6x4 and made to hold 15 so the space isn't an issue, plus they free range in my yard all day there's no way I can seperate them any more than i do already, since the older ones wont let the new ones sleep in the coop they roost in my large outdoor brooder box
The old breeds are all listed in my signature, we just added a cream legbar, an amaracauna, and a black marans x lavender ameracauna olive egger as well as a bantam phoenix rooster, the only one who has successfully integrated into the flock is the rooster
we added them 3 weeks ago, thought at first it was a passing thing that would change with time but if anything has gotten worse