Tschudi's Nightjar

Quechuavis decussata

Fairly common but nocturnal bird of lowland desert with scattered low bushes and agricultural areas with hedges and brush. Sleeps during the day on the ground or on a low shady perch; when flushed flies with quick stiff wingbeats and short glides. Note the broad rounded wings and snappy flight style, unlike pointed wings and erratic flight of Lesser Nighthawk, which occurs in the same areas. At night hunts from ground and low perches. Like all nightjars, may be located at night by brilliant amber eyeshine reflected in light beams.

识别特征

Tschudi's nightjar is 20 to 21 cm (7.9 to 8.3 in) long. Males weigh 28.5 to 35 g (1.0 to 1.2 oz) and females about 32 g (1.1 oz). It is overall grayish brown with blackish speckles. The male has a broad tawny or cinnamon collar on the hindneck, a small white patch on the throat, white bands on the wing, and white bands and tips on the tail. The female's throat is buff, the bands on the wing are buff, and the tail usually has no white.

分类信息

Tschudi's nightjar was originally considered a species, then a subspecies of band-winged nightjar (Systellura longirostris), and since 2016 again is treated as a species. It also was assigned for a time to genus Caprimulgus. Its current position in genus Systella is not completely resolved; it shares the genus with the band-winged nightjar but does not seem to be closely related to it. It is monotypic.

学名
Quechuavis decussata
命名信息
(Tschudi, 1844)
Cariamiformes
Trochilidae
Quechuavis

分布与栖息地

Tschudi's nightjar is found along most of western Peru and extreme northern Chile. It inhabits the littoral and foothills in this arid landscape. It generally keeps to open country, clearings, and wooded edges though it is also found in urban areas including Lima, Peru. In Peru it ranges from sea level to 1,300 m (4,300 ft) but has been reported as high as 3,350 m (11,000 ft) in Chile.

迁徙
Resident species

行为

Nothing is known about Tschudi's nightjar's diet or feeding behavior.<p>The breeding season of Tschudi's nightjar is thought to be from November or earlier to January. Essentially nothing else is known about its breeding phenology.<p>Tschudi's nightjar's song is "a loud series of well-defined, but slightly buzzy 'cueeo' notes". Its alarm call is "a slightly squeaky-sounding 'wick'".

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Madagascar Jacana

Madagascar Jacana

Actophilornis albinucha

Distinctive shape that is typical of jacanas, including enormous feet. Most adults have white on the back of the head and neck, though some are completely dark-headed. Juvenile shows a stripe through the eye. Uncommon at low elevations in western and northern Madagascar, in a variety of thickly vegetated wetlands, especially those with water lilies. Call is a quiet series of “trrr” notes. Distinctive, as this is the only jacana in its range. 

Festive Amazon

Festive Amazon

Amazona festiva

Medium-sized, chunky parrot; typically appears entirely green with a contrasting red forehead. Usually found in pairs or larger groups; feeds on fruit and flowers, sometimes commuting long distances between feeding sites. Locally distributed and unlikely to be encountered away from seasonally flooded forests along large rivers or in coastal regions. Smaller than Blue-cheeked Parrot with darker face pattern and black bill. Festive Parrot also lacks contrasting orange patch on wing and has a burrier, more nasal call than Blue-cheeked Parrot.

Two-banded Warbler

Two-banded Warbler

Myiothlypis bivittata

Small, yellowish bird with a fine black bill and distinctive black stripes on head. Mostly green above and yellow below; has rufous or orange crown bordered by black, but crown color can be difficult to ascertain. Note olive eyebrow becoming yellow in front of eye, and bright pinkish-yellow legs. Inhabits dense understory of foothill forests along the eastern slope of the southern Andes and in the tepui region. Usually occurs in pairs or small family groups that forage actively for insects, often joining mixed-species flocks. Song in tepuis is a series of chips followed by a high-pitched, screeching note. In southern part of range, song is very different: a rich rollicking series of notes that may vaguely recall House Wren and is often given by pairs as a duet. In southern Andes, most similar to Golden-bellied Warbler but has olive (not entirely yellow) eyebrow; also similar to Golden-crowned Warbler but typically occurs at higher elevations and has olive (not whitish) eyebrow.

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