The Western Screech-Owl (Otus kennicottii) occurs across much of the western United States and parts of coastal western Canada southward into central Mexico. It inhabits a wide range of habitats and elevations. This species has a very different vocalization from Eastern Screech-Owl and displays a mostly black bill as opposed to the Eastern's greenish bill. The Western Screech-Owls on the left were photographed in April, 2003, in Tucson, Pima Co., AZ. These were digital shots with a Canon EOS 10D and an EF 600mm F/4 L IS lens and flash.