I've been a member for years but I've not been active for quite awhile. Sorry about that but life got pretty busy for the last several years.
I've had chickens most of my life. My daughter has as well. We were never allowed to butcher a chicken while she lived at home. I grew up doing it...
I think your only bet is to plant them a foot out from th very bot
tom & run twine from the highest point you think your feathered friends will be able to reach down to the ground. Put some LG nails in the ground & tie the twine to them. Then you plant morning glories & when they get tall...