now i am worried and thankful for this thread. I have 4 birds a 4ftx10ft run and a coop that is 4ftx4ft... we have smaller yard and i will let them out into the yard a few times a week for a few hours but i worry about the neighbor dogs getting them so i can't let them out much more than that. will this work? do i need to get rid of one or two of my girls? I want really happy chickens. last time we had chickens our yard was 3/4 acre and there was an orchard to roam in and a garden to eat and they were sooooo happy. fig trees pears apples berries plums cherries they were in chicken heaven. but here it is just a plain grass yard with a few very tall pine trees and i cant risk them getting into the neighbors yard. so i was going to keep them in the 10x10 run and 4x4 coop. but now reading about all the space they may need to be happy i am worried. I was not trying to cram a bunch of girls into a small space I too was going by the chicken math from here on the BYC. do you think they will be okay? thanks