Thanks for your posts!
I think it is useful to clarify the difference between types of "bird netting". There is tough woven aviary netting out there (I have 2") that will withstand a lot of force, it is like fishing netting, very serious stuff. I think stuff I got is 180-200 lb tested? This versus the flimsy "deer netting" and "bird netting" a lot of garden supply places sell.
Question to
@Sueby is how you attached the hog rings to the fence? I'm also assuming your fence is super-sturdy and can take the pull.
Second & third question
@Sueby is whether those middle poles are placed deep in the ground or just placed on the ground. How tall are they?
I have been using 2" strong aviary netting attached to tall walk-in 10'x13' greenhouse frames with carabiner clips. I used two of these as moveable runs along with a coop tractor for 4 hens, and I have electric poultry fencing surrounding a bigger area. The hens' coop is secured at night. I took the aviary netting down for the winter but only because these particular greenhouse frames are fairly weak - I'm not worried about the snow on the netting, but the potential weight and yaw on the frames.