Australian Swiftlet

Aerodramus terraereginae

Small plain grayish swiftlet with a pale rump and a slightly darker cap. Almost always seen in flight; note slender wings, very quick stiff wing beats. Possible confusion with Tree Martin, which is much paler below with a paler rump, plumper body, and shorter wings. Abundant in tropical north Queensland.

识别特征

It is 11–12 centimetres (4.3–4.7 in) long with a wing length of 107–118.2 millimetres (4.21–4.65 in) and a weight of 10.5–12.5 grams (0.37–0.44 oz). The upperparts are dark grey-brown while the underparts are a uniform greyish. There are pale feathers on the forehead and lores. The rump is normally pale greyish but can occasionally be darker. The tail is slightly forked. The form chillagoensis is smaller and paler with a weight of around 9.39 grams (0.33 oz).<p>It has a high-pitched flight call. In its breeding caves, it utters a metallic clicking call, used for echolocation.

分类信息

Genus: Aerodramus; Family: Apodidae; Order: Apodiformes.

学名
Aerodramus terraereginae
命名信息
(Ramsay, EP, 1875)
Apodiformes
Apodidae
Aerodramus

分布与栖息地

A. t. terraereginae occurs in tropical north-east Queensland from the Claudie River on the Cape York Peninsula south as far as the Eungella Range near Mackay. It is mainly found near the coast including a number of offshore islands. It occurs up to 1,000 metres (3,300 ft) above sea-level but is commonest below 500 metres (1,600 ft). A. t. chillagoensis is found further inland in the area around Chillagoe, west of the Great Dividing Range.

迁徙
Resident species

行为

Migration pattern: Resident species.

保护状况

Population trend: stable.

种群趋势
stable

照片

分布

其他鸟类

Dickinson's Kestrel

Dickinson's Kestrel

Falco dickinsoni

Medium-sized gray kestrel. Note the pale head, rump, and underwing, which are conspicuous in flight. Bright yellow eye ring and base of bill. Found in open savanna, preferring areas with baobabs and/or palms. Call is a repeated, vibrating “krrrr.” Similar to Gray Kestrel, but easily distinguished by paler head and underparts. Other small falcons do not have gray underparts.

Red-billed Pigeon

Red-billed Pigeon

Patagioenas flavirostris

Large dark pigeon. Body and wings mostly bluish-gray with maroon-colored neck and shoulders. Note red bill with pale yellowish tip. Immature paler grayish without maroon tones. Common from Mexico to Costa Rica, mainly in lowlands and foothills. Barely enters the U.S. in Rio Grande Valley of south Texas. Typically seen in pairs or small flocks, often perched conspicuously in a variety of habitats, including open forests, patchy farmland, and mangroves. Tends to be fairly shy. Separated from other pigeons in Middle America by large size, bill pattern, and dark tail and undertail coverts. Listen for low cooing song: “whoo, whoop-a-whoo.”

Long-tailed Widowbird

Long-tailed Widowbird

Euplectes progne

Large dark widowbird. Breeding males, with massive tails and red and white highlights on their broad black wings, are unmistakable. Non-breeding males lose their long tails and become streaky and brown but keep the distinctive wing pattern. Females are brown and streaky year-round. Breeds in moist grassland but sometimes found in cultivation and other open habitats. Usually in flocks, especially when not breeding. Males give a very slow display flight in which the huge tail hangs down. Song is a sizzling trill. Females could be confused with many other species but even during the non-breeding season usually associate with males, which show a distinctive wing pattern.

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