What a fun thread! I spent several years on an organic apple farm, and when the farmer heard that I grew up with chickens, told me about the idea he'd had to use chickens to keep bugs down. We bought an old hen-house, put it on skids, and towed it several miles home with a tractor, built a fence around the orchard, and ordered some day-old peepers. (The cats were utterly fascinated by the box that arrived.) I'd had a bit of fun mixing and matching, so there was a Rhode Island Red rooster (yes, my very own "little red rooster"), Cochin, Orphington, Leghorn and so on, and the eggs were pastel colours.
The farmer would smile whenever he walked past and saw the chickens busily pecking away under the trees. To handle the local fox, I added one goose, but he got far too good at handling me. (By the way, do you know where the expression "loose as a goose" comes from? Have you ever seen a goose ... ahem ... defecate?)
Come apple-harvest time, we headed out to the orchard with gunny sacks. We found apple trees full of apple-fed chickens. (Who knew chickens could fly? We'd obviously forgotten.) We spent that winter eating apple-fed chicken, yum.