I have 340 acres that comes out to about 7000 trees.
I will actually buy the bullets for friends if they promise to shoot squirrels and crows!
When I lived in So. Cal. a buddy had a friend that raised dairy cows and also had a veal operation going on. He was in a crow flight path, and they'd make a mess of his place eating the feed for the cows and pooping on what they didn't eat. He would furnish the decoys and electronic caller and we'd have a blast shooting crows. Best day was 120 of them. We'd put them in a pile in one of his fields, and at night he's shine 'yotes that came to eat the crows and take 'em out.