- 13.4–17.3 in
- 31.9–39.4 in
- 9.3–19.8 oz
- Petite Buse (French)
- Busardo aliancho (Spanish)
- The Broad-winged Hawk comes in two color phases: the common light phase and a rare dark phase. The dark form is entirely sooty brown with a tail like the light morph, and with whitish flight feathers contrasting with the dark wing linings. It is found primarily in the northwestern part of the range, and accounts for less than 0.1% of migrants observed.
- The Broad-winged Hawk completely leaves its breeding grounds in the fall and winter. Huge numbers of migrating broad-wings can be seen at hawk watches across the East. It usually migrates in large flocks or "kettles" that can range from a couple of individuals to thousands.
- A recent study attached satellite transmitters to the backs of four Broad-winged Hawks and followed them as they migrated south in the fall. The hawks migrated an average of 7,000 km (4,350 mi) to northern South America, and traveled an average of 111 km (69 mi) each day. Once at the wintering grounds, the hawks did not move around much, staying on average within 2.6 square km (1 square mi).
Breeds in continuous deciduous or mixed-deciduous forest. Winters in tropical forests.
Small mammals, birds, reptiles, amphibians, and large insects.
- Clutch Size
- 1–5 eggs
- Egg Description
- White or slightly bluish, with brownish patches or dots.
- Condition at Hatching
- Helpless, eyes open, covered in white down.
Large bowl of sticks, lined with bark chips. Often decorated with green twigs. May be placed on old crow or squirrel nest.
Drops on prey from perch in canopy.
Populations stable or increasing.
- Goodrich, L. J., S. C. Crocoll, and S. E. Senner. 1996. Broad-winged Hawk (Buteo platypterus). In The Birds of North America, No. 218 (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, D.C.
- Haines, A. M., M. J. McGrady, M. S. Martell, B. J. Dayton, M. B. Henke, and W. S. Seegar. 2003. Migration routes and wintering locations of Broad-winged Hawks tracked by satellite telemetry. Wilson Bulletin 115: 166-169.