i have a coop that i just threw together out of a cabinet up on blocks, i made a ladder to it but its also low enough they can jump on in. i have white silkies that love it. but i got blue silkies and the hens where afraid to get in it. they ended up laying eggs on the ground in front of it. so i put a dog house in there and they used it. im planing on making them a better one tall enough that i dont have to bend down to get the eggs also outside of the run. my question is how will i get them to use the new one. its going to be taller then the old one. also how big does it need to be for about 4-5 hens and a roo? think i would need 3 nest boxes?