Year around tracking with radio telemetry, supplemented by winter snowtracking, was used to determine home range sizes, major activity patterns and behavior of coyotes in Arkansas. Home ranges averaged 12.8 square miles for adult male coyotes, 5.1 square miles for adult females, and 4.6 square miles for female pups. Home ranges of some adult males, adult females and immature coyotes overlapped. Coyotes used some portions of their ranges more intensely than others and often marked their range with urine and feces. Adults were most active at night but foraged periodically during the day; pups were more active than adults during the day.