I am going to have about 6 hens and a Roo. I have 3 of my hens (atleast I hope they are hens ) at 6-7 weeks now and already have a year and a half rooster. My rooster is huge! About the size of my 3 year old. Im going to be making a Jersey Giant coop and a silkie coop. Since my JG roo seems so much bigger than my cochin and BR hen will they need more SQFT per bird??