Those are some seriously good looking birds. I'd never heard of copper Marans, just the plain old Marans or Coo Coo Marans. They're just beautiful.
I keep a mixed flock and some bantam Silkies. I've found that I don't have plum curculio in my stone fruit anymore, I am guessing because the birds have the run of the yard all fall and winter and up until I plant seedlings in the spring. All the scratching and bug-eating has ostensibly eliminated the curculio.
I have some of the plain copper tags hanging on my roses and a couple of fig trees, and I really need to get more to tag the rest of my trees. Right now I either have the variety names written on the inside and outside of the rim of the pots with a black china marker or grease pencil, and then I made long tags out of old vinyl window blind slats and wrote the varieties on them and poked them down in the pots. Not too smart, I know. I already have two good sized potted trees that are now 'unknown'....
My birds have never bothered my figs, I don't think they know they're edible??