Turquoise-crowned Hummingbird
Cynanthus doubledayi
Brilliantly-colored hummingbird with dark tail and mostly red bill. Fairly common in thorn forest within its limited range. Endemic to Mexico, mainly along the Pacific coast from Guerrero to Oaxaca. Can appear all dark at a distance, but in the right light, male is mostly glistening cobalt blue. Females are less colorful than males, dusky grayish below with prominent pale stripe behind the eye. Similar to Dusky Hummingbird, which occurs on the other side of the Sierra Madre del Sur.
识别特征
The Cornell Lab of Ornithology's Birds of the World does not describe the turquoise-crowned hummingbird separately from the broad-billed hummingbird. The following is a Google translation of the original description's French:<p>"Male adult: straight beak, dilated at its base, white, and black at its extremity; round head; green cap, very brilliante has azure reflections; neck, scapular, back, cover caudal fin glossy dark green; throat, front and sides of the neck, ėpi-gastre covered with shiny bright blue scaly feathers, abdomen less blue and green on the sides; downy anal region White; slightly curved grey-black wings; cordate [notched] tail with wide and rounded rectrices, black-blue, the 4 middle ones ashy at their ends; bare black legs."<p>The Birds of the World account of the broad-billed hummingbird includes that the male turquoise-crowned hummingbird weighs about 2.4 g (0.085 oz).
分类信息
The International Ornithological Committee (IOC), the Clements taxonomy, and BirdLife International's Handbook of the Birds of the World consider the turquoise-crowned hummingbird to be a species. The turquoise-crowned hummingbird is monotypic: no subspecies are recognised.
- 学名
- Cynanthus doubledayi
- 命名信息
- (Bourcier, 1847)
- 目
- Caprimulgiformes
- 科
- Trochilidae
- 属
- Cynanthus
分布与栖息地
The turquoise-crowned hummingbird is found in the southern Mexican states of Guerrero, Oaxaca, and Chiapas. It inhabits a variety of landscapes including arid thorn, tropical deciduous, gallery, and secondary forests. It occasionally occurs in pine-oak woodlands and grassy slopes. In elevation it generally ranges from sea level to 2,200 m (7,200 ft) but occurs as high as 3,000 m (9,800 ft).
- 迁徙
- Resident species
行为
The turquoise-crowned hummingbird is a year-round resident throughout its range.<p>The diet of the turquoise-crowned hummingbird is not separately described from that of the broad-billed hummingbird. In general, and like most hummingbirds, that species feeds on a wide variety of flowering plants and also small arthropods. The turquoise-crowned hummingbird is described as trap-lining for nectar in gallery forest.<p>The turquoise-crowned hummingbird appears to nest throughout the year; its peak season is unknown. Other information on its breeding phenology is not separated in the Birds of the World account.<p>The turquoise-crowned hummingbird's vocalizations have not been separately described from those of the broad-billed hummingbird. That species' song, sung only by males, "[b]egins with short chip note, then a series of similar notes ranging in frequency from 2 to 13 kHz."
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Azure-naped Jay
Cyanocorax heilprini
Large blue-gray jay with a black face and piercing yellow eyes. Note the white-tipped tail. Found at forest edges, in wooded savanna, in second growth, and in white sand forests, avoiding the interior of humid forests. The “Campina Jay” subspecies of southern Amazonia, considered a species by some authorities, has a pale azure rather than dark purplish-blue breast, a paler uppertail, and two bare blue skin patches around the eye. The call is a loud, harsh “jeer,” similar to the call of Violaceous Jay.
Mindanao Heleia
Heleia goodfellowi
A fairly small bird of montane forest on Mindanao. Olive on the upperparts, darker in the wing and tail, with a blackish mask, dingy yellow underparts, and a pale gray throat. Usually found in mixed-species flocks with Cinnamon Ibon, Mountain White-eye, and Black-and-cinnamon Fantail. Similar to Yellow-bellied Whistler, but usually found at higher elevations, and has a thinner bill and dark mask. Gives a musical whistle and also a harsh grating call.
Costa's Hummingbird
Calypte costae
Small hummingbird of desert habitats in southwestern U.S., western Mexico, and Baja. Compact and short-tailed with a slightly drooping bill. Male has a brilliant purple crown and throat that extends down to a point on each side; can appear black in poor lighting. Females are plainer with greenish back and dingy grayish underparts. Note pale eyebrow that wraps around the dark cheek, droopy bill, and dumpy, short-tailed shape to help separate from similar hummingbirds (especially Anna’s and Black-chinned). Wanders from the desert after breeding, visiting more varied habitats including backyards with sugar water feeders. Listen for very high-pitched song.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。