Red-billed Buffalo-Weaver
Bubalornis niger
A large, chunky, thickset weaver. The male is chocolate-brown with red legs and a hefty vermilion bill; the female and juvenile are paler and streaky underneath, with paler bills. In flight the species shows striking white wing patches. Family groups prefer dry woodlands with large trees that hold their sprawling and messy communal nests. Buffalo-Weavers forage on the ground in small to large groups, often in association with starlings and other birds, searching for insects, seeds, and fruit. Their odd electronic-sounding vocalizations often draw attention to them. The similar White-billed Buffalo-Weaver does not have a red or pinkish-orange bill.
识别特征
The body length of full grown red-billed buffalo weavers is 21 to 25 cm (8.3 to 9.8 in) and body mass averages 82.1 g (2.90 oz) in males and 70.7 g (2.49 oz) in females. This may the largest of the Ploceidae (weaver birds). Visually the sexes are not greatly differentiated from one another. The red-billed buffalo weaver is differentiated from the white-billed buffalo weaver (Bubalornis albirostris) by the color of its bill.<p>The feathers of the male are dark chocolate brown in color. The front wing edges and the wing tips are flecked with white. His bill is a shade of red. The eyes are brown and the feet are reddish brown. The female's body is also colored dark chocolate brown, without the white flecks on the wings. However, her chin and throat feathers include broad white colored hems. Her eyes are dark brown and her legs light brown. Adolescent birds are a lighter shade of brown.
分类信息
- 学名
- Bubalornis niger
- 命名信息
- Smith, A, 1836
- 目
- Passeriformes
- 科
- Ploceidae
- 属
- Bubalornis
分布与栖息地
- 迁徙
- Resident species
保护状况
The red-billed buffalo weaver is currently listed as a least concern (LC) on the IUCN status. While the global population of this species has not been estimated, this bird is considered common and the population is stable. There are currently no programs or organizations established to monitor and maintain the LC status of the bird.<p>Predators of the red-billed buffalo weaver include hawks, eagles, snakes, and baboons. They prey on both adult and adolescent birds.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
White-chinned Jacamar
Galbula tombacea
Similar to many other species of jacamar: mostly glittering emerald-green with a rufous belly, long tail, and long pointed bill. Sexes are similar; female has a paler belly. Found in northwestern Amazonia, where pairs occur in the lower to mid-levels of mature lowland forest, often around water. Namesake white chin is not super conspicuous but usually visible. Also note brownish crown. Most similar to Bluish-fronted Jacamar, but apparently no range overlap.
Ochre-breasted Antpitta
Grallaricula flavirostris
Small and fairly bright antpitta found in foothills and subtropics from Costa Rica to Bolivia. Typical antpitta shape: plump and short-tailed. Dull brown above. Messy-looking buffy face and eyering. Some geographic variation: breast color varies from buffy to whitish, and some populations show bold dark scaling on breast, while others are nearly unmarked. Sexes similar. Shy and difficult to see; stays on or near the ground in forest, often perching on small limbs a couple meters high (more so than the larger antpittas). Swings its body side to side. Song can be difficult to detect: a simple, extremely high pitched, descending whistle. Occurs from around 500–2,500 m, usually lower than other small antpittas.
Buff-breasted Sabrewing
Campylopterus duidae
Large green and buff-colored hummingbird of the remote tepui highlands of southern Venezuela and extreme northern Brazil. Note the green upperparts, whitish spot behind the eye, and buff tail and underparts. Sexes similar. Common in tepui highlands, in bushes, forest edges, and open areas with small trees. Territorial, often alone or in pairs close to flowers. Voice is a nasal “dui” note repeated many times.
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。