I used to call my house Ft Knox because of all the fences, but then I realized I should really call it "Ft Cluck." The lady at the store always laughs when she sees me with a roll of chicken wire! I keep saying, "Just one more roll should do it!" And I've said that quite a few times!
I made 2' tall hardware cloth "cans" for all my hostas, and I have made note of the plants they don't like too eat and will be replanting some defoliated places next year. It was a real learning year for us as this was our first year to have chickens. I had chickens when I was a kid, but we only had a couple at a time and we let them free range on our 2 acres. Urban hen keeping is an entirely different matter!
Good luck. Try geraniums - they don't like them. And they don't mess with Coral Bells or Lady's Mantle too much.