Nankeen Kestrel

Nankeen Kestrel

OccasionalGBIF 9.7·Dongniao Rarity Index7.74

Falco cenchroides· 隼科· Falconiformes

Nankeen Kestrel (Falco cenchroides) 澳洲隼,是隼形目隼科隼属的鸟类。小型猛禽,广泛分布于澳大利亚和新几内亚。其最显著的外部特征是暖棕色上体、浅色下体以及尾部的深色横带。成年雄鸟头部呈灰色,雌鸟则更多呈现红褐色。这种鸟常见于农田和草原地带。

Species Profile

IOC World Bird List

Nankeen Kestrel

Falco cenchroides· Falcons, Hobbys

30-35 cm; span to 80 cm. Female larger. Hovers with tail fanned, black tail band visible from below; hangs motionless in stiff breezes with slender wings crooked back, tail closed and raised. Pale rufous ('nankeen') above, with black flight feathers; whitish below, with black 'teardrop' down through eye. Male: crown and tail pale grey. Female: crown and tail as upperparts; tail finely barred black. Immature: like mottled female. Singles, pairs, family parties, open companies: perches on dead trees, fence and telephone posts. Hovers over grasslands; soars in air currents around city buildings, spires.

Other name
Australian Kestrel, 'Sparrowhawk', Windhover.
Similar Species
Black-shouldered Kite; Brown Falcon, pale morph with yellow cere, legs.
Voice
shrill, rapid 'keekeekeekeekee'; wavering 'keer, keer, keer'.
Habitat
grasslands, plains, gibber deserts, foothills, high plains, beach wastes, dunes, cliffs, farmlands, ploughed land, crops, roadsides, grain silos, railyards, buildings.
Breeding
Aug.-Dec.
Nest
in tree hollow; ledge or cavity in cliff or building; old nest of other raptor, corvid, babbler orchough.
Eggs
3-4 (5); pale buff, closely mottled red-brown.
Range & Status
widespread mainland Aust.; in Tas., uncommon, nonbreeding visitor. Sedentary, part-migratory, nomadic: with movement to n. Aust. in winter, s. Aust. in summer; down from high country in autumn. Irruptive in response to local abundance of house mice, grasshoppers. Also Lord Howe I., Christmas I., NG, Indonesia, where possibly winter migrant.
Distribution key to races
1. Falco cenchroides cenchroides