There have always been rats on my property, but several months after I got chickens their population has exploded. With careful maneuvering, I can keep them out of the coop - its secure, with all-around wiring and frequent patch jobs - but its getting unrealistic. I feel I'm participating in an awkward human-rat-chicken dance. I've set traps, but the rats are too smart and will either avoid capture or break free. Gassing is not an option as the rats tunnels open to the exposed wiring of the coop and I live in an urban area. Does anyone have any suggestions on how to lower/terminate the rat population? I'm already being careful about keeping food out of their reach. I do have dogs, but they have no interest in rats, and I can't keep cats. Should I just do more of the same?