Rose-breasted Chat
Granatellus pelzelni
Small and distinctive warbler-like bird, often difficult to see well. The male has a black head with contrasting white eyebrows and throat, gray upperparts, and striking pinkish-red underparts. The female has a buffy face, chest, and undertail coverts, whitish belly, and gray upperparts. Prefers canopy vine tangles and river edges, where it may occur lower; creeps through vegetation, alone or with mixed-species flocks, feeding on insects. Generally uncommon and inconspicuous. Plumage is unlike any other species in range. Song is a series of soft, rising whistles.
识别特征
The nominate rose-breasted chat is 12 to 12.5 cm (4.7 to 4.9 in) long and weighs 10 to 12.5 g (0.35 to 0.44 oz). The male has a black head with a white supercilium, blue-gray upperparts, and a black tail. Its throat is white with a thin black line separating it from the rose-red breast, belly, and vent area. It has white flanks separating the blue-gray and red. The female's crown, nape, and upperparts are blue-gray and the tail black. Its face, breast, flanks, and vent are a rich buff and its throat and belly are white.<p>The male G. p. paraensis is also 12 to 12.5 cm (4.7 to 4.9 in) long. Its plumage differs from the nominate's in that its head is gray except for the forecrown, its underparts are a deeper red, and the white of the flanks is much reduced or absent. The female is essentially identical to the nominate.
分类信息
The genus Granatellus was traditionally placed in family Parulidae, the New World warblers. Studies of DNA sequences in the early 2000s resulted in its being moved to its present family. The rose-breasted chat and the other two members of its genus, red-breasted chat (G. venustus) and grey-throated chat (G. sallaei) form a superspecies.<p>The rose-breasted chat has two subspecies, the nominate Granatellus pelzelni pelzelni and G. p. paraensis. The latter might be a species in its own right ("rose-bellied chat"), based on differences in plumage and vocalizations from the nominate.
- 学名
- Granatellus pelzelni
- 命名信息
- Sclater, PL, 1865
- 目
- Passeriformes
- 科
- Parulidae
- 属
- Granatellus
分布与栖息地
The nominate rose-breasted chat is found in extreme eastern Colombia east through southern and southeastern Venezuela and the Guianas and southwest through central and eastern Amazonian Brazil to extreme northern Bolivia. G. p. paraensis is found east of the Tocantins River in far eastern Amazonian Brazil. Both subspecies inhabit tropical rainforest and its edges and are often found by rivers or lagoons in the forest interior. The nominate also inhabits drier deciduous forest and mature secondary forest. The nominate's range is mostly at low elevation but reaches as high as 850 m (2,790 ft) in southern Venezuela. G. p. paraensis's range is almost entirely at very low elevation.
- 迁徙
- Resident species
行为
The nominate rose-breasted chat's diet is thought to be mostly or entirely insects and other invertebrates. It forages mostly at middle to high levels but sometimes in the understory; it gleans foliage and sallies out to catch flying insects. In the non-breeding season it may join mixed-species foraging flocks. G. p. paraensis's diet and foraging habits have not been documented but are assumed to be similar to those of the nominate.<p>Nothing is known about either rose-breasted chat subspecies' breeding phenology except that a nominate male was in breeding condition when collected in January and a nominate juvenile was observed in molt in early May.<p>The nominate rose-breasted chat's song is " a series of 5–6 clear, sweet notes on one pitch". Its calls include a repeated "jrrt". G. p. paraensis's song is alternating "mellow low-pitched downslurred whistles and harsher short high-pitched notes".
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Cape Batis
Batis capensis
A cute, dumpy, colorful flycatcher-like bird that flits around in the mid-canopy and understory of forest, forest edge, thickets, and gardens. There is a chestnut stripe across the top of the closed wing of both sexes. Males have a broad black chest band, yellow eye, and white throat. Females have a reddish eye and brown chin patch. The song is a series of 8-9 plaintive steady piping “peooop” notes, and calls include buzzing grating “ddrz-drrzt-drrr, ddt-ddzt-drzt-drr”. Distinguished from other batises in its range by the chestnut stripe through the wings.
Brown Skua
Stercorarius antarcticus
Large, dark brown skua with a very robust beak. Several subspecies vary in plumage from largely dark to mottled pale brown. In flight, exhibits a broad white patch on both upperwings and underwings. Usually seen well offshore, less often towards the coast; often follows boats. Lacks the capped appearance of Great and Chilean Skuas, and has darker underwing coverts than those species. The dark morph of South Polar Skua has colder tones and a smaller bill, but field separation is difficult.
Sooty Flycatcher
Artomyias fuliginosa
Unusual small, chunky flycatcher. At a distance looks entirely dark, but a good view reveals a chocolate brown base color and paler brown streaking on the underparts. Has long, pointed wings and looks like a bit like a swallow in flight. Found in rainforest, where it perches up on dead trees, especially at the forest edge and around clearings. Often in small groups. Not very vocal, but does give a quiet, variable song of squeaks, whistles, and trills. Easily separated from other flycatchers by very dark plumage and unusual habits.
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