Please bear with me if this is a ridiculous question. I have a smaller coop with a bantam roo (that I'm trying to rehome, PM me!) and two bantam pullets. The coop could easily fit two more bantams or one standard chicken. My question is this, how big an entrance can a full sized hen fit through? The entrance into the coop is a pet door, about 7" X 6". My huge (15 lb) cat fit through it, and my full sized rabbit can squeeze through a 2" opening, so I wonder how much of a hen is really feathers? Could a 6-7 lb hen fit through this little door? I am kind of wanting to add a standard hen because I'm getting really tired of getting bantam "pullets" only to have them crowing within a few weeks. Standard sized pullets seem a little easier for the hatchers to sex.