The
Gray Hawk is a tropical hawk that just reaches the United States in southern
Arizona and Texas. Even there they are very uncommon, with numbers of
nesting birds in the U.S. a few hundred at the very most. They are
rather unique in plumage for a Buteo hawk, with slate-gray upperparts, and a
finely barred, gray belly and chest. Their range extends from the
southern U.S., southward through Mexico and Central America, and into much
of northern South America.
Habitat: Gray Hawks can be found in a variety of
semi-open habitats throughout their tropical range, often in areas with
openings interspersed with dense brush. In the United States portion
of their range, they are found almost exclusively in riparian areas, using
large riparian trees such as cottonwoods for nesting.
Diet: Feeds on a variety of small animals, many
lizards and small birds, as well as snakes, rodents and other small mammals,
frogs, and large insects.
Behavior: Gray Hawks are very agile and nimble
hunters, well adapted to hunting in brushy and forested habitats. They
will sit on a perch and look for prey, making fast direct flights when prey
is spotted. They are adept at flying through relatively thick brush
and forest canopies in search of prey. They will also slowly circle or
fly low in and around forest areas in search of prey.
Nesting: The nest of a Gray Hawk is usually built
within the lower canopy of a tree. It is built of sticks with a lining
of leaves or moss. Both the male and female will incubate the eggs,
and both sexes will also help to raise the young.
Song: Gray Hawks have a long series of whistled
calls when displaying.
Migration: Nearly all birds in the U.S. part of
their summer range retreat southward into Mexico for the winter. A few may
linger near the Mexican border. Considered a permanent resident
throughout most of the rest of their range.
Similar Species:
Quite distinctive in plumage from other Buteo hawks if seen well.
Possibly confused with Northern Goshawk.
Conservation Status: There are currently no
perceived major threats to Gray Hawk populations, and Birdlife
International cites it as a species of "Least Concern".