The red-tailed hawk is the most common hawk in North America. Red-tailed hawks are year-round residents in Colorado. They perch atop telephone poles, eyes fixed on the ground for the movements of a vole or a rabbit. They are more often seen soaring above open fields, slowly turning circles on their broad, rounded wings. Wingspan from 3.4 to 4.8 ft. Average weight 2.4 lbs.
The male is blue with two brown wing bars. The female is mainly brown with scattered blue feathers on the upperparts and two brown wing bars.
Blue Grosbeaks winter in Central America and breed in the southern United States and northern Mexico. Wingspan is from 10 to 11 in. Average weight 1.0 oz. Click here to read a photo story of a hawk catching its dinner (a vole), by George Ho. Photos and information by George Ho