Western Bronze-naped Pigeon
Columba iriditorques
Blackish, short-tailed, medium-sized pigeon. Both sexes have reddish underparts, and the male shows a contrastingly gray head. There is a buff tip to the tail which can be conspicuous in flight. Found in rainforest and gallery forest. Inconspicuous bird that spends most of its time in the forest canopy. Song is a “bouncing ball” accelerating series of low hoots. Fairly similar to Lemon Dove, but rarely found in the understory, and has a dark face. Male could be confused with Blue-headed Wood-Dove, but has a much darker back, and is usually found higher in the forest.
识别特征
A medium sized bird, the western bronze-naped pigeon measures about 25 centimetres (9.8 in) in length. It has a pale, broad terminal tail band which is noticeable on landing. The adult male weighs about 130 grams (4.6 oz), and has dark bluish grey head, and dark vinous belly and breast. The adult female weighs about 122 grams (4.3 oz), and has cinnamon-reddish brown crown, and greyish chestnut underparts.
分类信息
The species was first described in 1856 by the American ornithologist John Cassin. It is occasionally considered conspecific (belonging to the same species) with the eastern bronze-naped pigeon (Columba delegorguei) and the island bronze-naped pigeon (Columba malherbii), and the three species are sometimes placed in the subgenus Turturoena.
- 学名
- Columba iriditorques
- 命名信息
- Cassin, 1856
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Columba
分布与栖息地
It is widespread across the African tropical rainforest.
- 迁徙
- Resident species
保护状况
Since 1988, the western bronze-naped pigeon has been rated as a species of least concern on the IUCN Red List. This is because it has a large range, and because its population is stable and thought not to have declined by 30% over ten years or three generations. Although the population size has not been measured, it is thought to be more than the threshold required to warrant it a vulnerable rating. There is no evidence of any population decline of the species, or substantial threat to it.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Mountain Elaenia
Elaenia frantzii
Unobtrusive and easily overlooked flycatcher of highlands in Central America; recently found in northern Chiapas. Occurs mainly at forest edge and in overgrown scrubby areas with trees and fruiting bushes. Perches quietly and fairly upright, sallying out to pluck berries. Note the overall drab plumage, rounded head (lacks distinct crest of larger and bulkier Yellow-bellied Elaenia), whitish eyering, and big whitish edges to the tertials.
Greater Bluebonnet
Northiella haematogaster
Brown parrot with yellow-and-red belly and deep blue face, typically found in dry inland habitats in eastern Australia. Multiple subspecies vary in the color of their wing patch, belly, and undertail. Usually seen in small groups, this species is often hard to approach and is easily flushed. In flight, the blue wings and red shoulders contrast with pale brown back. Distinguished from the similar but smaller Naretha Bluebonnet by presence of red on belly.
Painted Tody-Flycatcher
Todirostrum pictum
Tiny bird of forest canopy; difficult to see well and heard far more than seen. Appears mostly yellow from below. In addition to tiny size, note limited black streaking on breast and large bill. Found in tall lowland forest and occurs mostly in pairs that do not typically join mixed-species flocks; seems more common near rivers but is also likely to be found away from them. Sits still and darts out to snatch insects from foliage. Call is an incisive, doubled metallic note; also indistinct ticking.
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