Thursday, December 29, 2011

Broad-Winged Hawk Facts, Pictures, Information

This chicken made hawk-watching famous. Thousands of bird watchers collect to watch the yearly slip migration of broad-winged hawks. They start in October in New Britain, journeying down the Appalachian side on their way to their wintering argument in South The united states. They happen in lumination and black (rare) morphs, women are a little bit larger than men, juveniles different from people. Polytypic (6 ssp.; nominate in South America). Length 16" (41 cm); wingspan 34" (86 cm).

Identification The tiniest South American buteo. Dark morph: mature has an all-dark body with black side coverts and silvery trip down, the black longest tail has a large bright group. The child is black with diverse lumination streaking on body and side coverts. Light-morph adult: Go, back, and wings are darkish, guitar neck is bright, side guidelines black, black longest tail with 1 large bright group. A second, slimmer group may be noticeable on the fanned longest tail. Undersides are bright with darkish or rufous unless across chest, less on the waist. Some individuals may have a solid-colored black chest, giving the chicken a black bib. Juvenile: darkish above like mature, but with light superciliary line on head, black malar stripe; darkish longest tail has several dark companies, greatest group at tip. Underparts are bright with black streaking on chest and waist, but amount of streaking is highly diverse, sometimes almost missing. Flight: side guidelines are more indicated than those of the other typical buteos, and the following side is almost straight. Grownup has light side designs and trip down distinct with black primary guidelines, a large black group along the following side of the side. Juveniles have a little bit more time tails, but the same side outline with the following sides not as black. Backlit wings present a lumination rectangular shape at the platform of the primaries. Underwing coverts are variably streaked, as is the waist. Wingbeats are stiff; it soars on flat wings.

Similar Types When journeying by air, a child red-shouldered hawk shows lumination crescents at platform of primaries and a more time longest tail. Located, it has a darkish longest tail with black companies, 3 companies on collapsed secondaries. Juvenile Cooper’s hawk can present the same overall marks, but no malar stripe; reduced, prohibited wings and much more time longest tail give a different shape.

Voice A lean, whistled kee-eee, seldom in migration, easily whistled by blue jays.

Status and Submission Common. Breeding: nests in woods throughout lower South The united states to lower Tx and Mn, in North america american side to Alberta and English The philipines. The unusual black change nests in american North america. Migration: popular for moving in groups (called “kettles”), generally utilizing updrafts along hill side. Cautious to corner open water. The Great Ponds create good looking at areas in both slip (Lake Erie) and may (Lake Ontario). During the last 6 days in October, typically over 700,000 broad-wings pass over Corpus Christi, Tx. Winter: small numbers, usually juveniles, in lower California and lower Tx, unusual in California. Vagrant: black change wildlife satisfied seen in the Eastern, mostly in may migration.

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