So the flock has been running free in the back yard for a while and now they are digging up the place.lol So I want to fence them in and seperate them out. I have an area of 75' x 100' that has two nice trees for shade. Two sides of the fence will be chain link and I'm planing on using chicken wire for the other two. I have cochins and silkies so I'm thinking a 4' high fence will work as none of them really fly. Should I use 1" or 2" hex fenceing and what size post. I'm thinking maybe 3" round or can I get by with a smaller size. Also how far apart should the post be? Thanks for your help.