Zone-tailed Hawk

The Zone-tailed Hawk is a dark, mid-sized buteo of the arid Southwest, notable for its striking resemblance to the far more common Turkey Vulture. Its overall sooty-black plumage, two-toned underwings, and habit of soaring with wings held in a shallow V (dihedral) closely mimic vulture flight, an example of likely mimicry that may let the hawk approach prey without triggering alarm.

Up close, the differences become clear: the Zone-tailed Hawk has a feathered, gray-and-black banded tail (versus the vulture's bare red head and unbanded tail) and flies with more controlled, hawk-like wingbeats mixed into its soaring.

Key Field Marks

• Overall blackish body and underwing coverts, with pale flight feathers giving a two-toned underwing similar to a Turkey Vulture
• Gray tail with one or more black bands, visible when fanned
• Yellow legs and cere (vultures have gray legs and a red, unfeathered head)
• Soars with wings in a shallow V, often mixed in with vulture flocks

Similar Species

• Turkey Vulture: bare red head, gray legs, unbanded tail, and a more wobbly, unsteady soaring flight; the Zone-tailed Hawk's flight is comparatively more controlled.
• Common Black Hawk: broader wings, a single broad white tail band, and a more direct, powerful flight, without vulture-mimicking behavior.

Range

Zone-tailed Hawks breed in the southwestern United States (Arizona, New Mexico, Texas) south through Mexico and Central America into South America. Northern populations are migratory, wintering farther south.

Habitat

They favor canyon country, riparian woodlands along desert rivers, and wooded mountain slopes, often hunting over adjacent open desert or grassland where they can blend into passing groups of vultures.

Hunting Strategy

By soaring low and unobtrusively among Turkey Vultures, Zone-tailed Hawks may approach ground-dwelling prey such as rodents, lizards, and birds that have learned to ignore vultures as a threat, then drop suddenly to catch them by surprise.

Voice

The call is a thin, descending squeal, typical of buteo hawks, given mainly near the nest or during territorial disputes.

Nesting

Nests are built in tall trees along canyon rims or riparian corridors, often reused in subsequent years. Clutches typically contain one to three eggs, with the female doing most of the incubating while the male provides food.