Goldenface
Pachycare flavogriseum
A small, brightly-colored bird of foothill and lower montane forest canopy. Bright yellow underparts, face and forehead. Gray back and crown, bordered with black which widens at the back of the neck to form a half-collar. Obvious white spots on some wing feather tips, meeting in 2 lines down the back. Unmistakable appearance. Explosive whistlerlike “whip!” notes or repeated “chikki-chewitt!”.
识别特征
The goldenface is a small whistler, around 13 cm in length and weighing 14–19 g. The plumage of the species is striking; the nominate subspecies (Pachycare flavogriseum flavogriseum) has a slate-grey back, tail, wing, cap and back of the neck and bright yellow face, throat, breast and belly. From the crown to the shoulder, the face is bordered with a black line and the tertial feathers of the wing are tipped with black and white. The eye and bill are black and the legs are pink. There is a small amount of sexual dimorphism, with the female differing from the male in having a dusky patch on the face. Immature birds of either sexes resemble the female. The three other subspecies resemble the nominate subspecies with minor differences. The subspecies P. f. subaurantium has darker upperparts and a slight orange tint, and P. f. subpallidum has much paler upperparts and the most yellow undersides. The identification of goldenface study skins held in museum collections is complicated by the tendency of the plumage colours used to identify the subspecies fading after death.
分类信息
The placement of this species and genus within the passerines is uncertain. It has been suggested that it belongs with the whistlers, in the family Pachycephalidae, based on its bright yellow plumage and voice, and the species is sometimes known as the dwarf whistler. Others have suggested placing it with the Australasian robins in the family Petroicidae, but the nest architecture is unlike that of the robin family; in fact, its nests more closely resemble those of the thornbills in the family Acanthizidae, another family to which it has sometimes been aligned. This relationship was supported by a 2009 molecular study, which placed the species in that family. There are four subspecies: Pachycare flavogriseum flavogriseum, P. f. subaurantium, P. f. subpallidum and P. f. lecroyae.
- 学名
- Pachycare flavogriseum
- 命名信息
- (Meyer, AB, 1874)
- 目
- Passeriformes
- 科
- Acanthizidae
- 属
- Pachycare
分布与栖息地
- 迁徙
- Resident species
行为
Insects and spiders form the majority of the diet of this species. These prey items are gleaned from the outer foliage of trees, usually in the midstory, sometimes entering the upper stories of the forest. Goldenfaces will sometimes join mixed-species feeding flocks when foraging.<p>Little is known about the breeding biology of the goldenface. It may be slightly seasonal; birds in breeding condition have been found in August and October, and eggs and nestlings have been found from June to November. The nest, which is built by both parents, is globular in shape and has a downward pointing side entrance.
保护状况
- 种群趋势
- stable
照片
分布
其他鸟类
Phoenix Petrel
Pterodroma alba
A long-winged petrel, predominantly dark with a gleaming white belly. Throat patch often shows pale speckling, and birds sometimes appear distinctly pale-throated. Key identification feature is the prominent pale bar at the leading edge of the dark underwing between the elbow and body. Similar in pattern to Tahiti Petrel, but much smaller-billed and sometimes shows a pale throat. Usually flies with wings bent at the elbow, unlike the remarkably straight-winged Tahiti Petrel. Silent at sea.
White-throated Oxylabes
Oxylabes madagascariensis
Mid-sized tetraka with a bold white throat and eye-stripe. Brown on the back, rufous on the underparts, and bright rufous on the cap. Madagascar endemic that is found in low- and middle-elevation eastern and northern rainforest. Skulking but restless understory bird that prefers dense tangles. Sometimes joins mixed flocks. Common vocalizations are a quick, thrush-like up-and-down series, and a low, accelerating rattle.
Rufous-capped Lark
Calandrella eremica
A medium-sized slender pipit-like lark with a long tail and relatively weak bill. A washed-out version of Blanford’s and Red-capped Llarks, which it replaces on the Somali and Arabian peninsulasNote whitish eyebrow and diffuse reddish-brown crown that can be raised into a small crest. Some individuals have pale reddish-brown sides to the chest on otherwise very plain pale underparts. Pairs and small flocks are resident and partial migrants in open and sparsely vegetated regions, including stony areas. Pairs or small groups forage on the ground, where they can be surprisingly cryptic, running around in short bursts and stopping to forage. It can also be found drinking at waterholes. The song, often given in an extended undulating pipit-like display flight, is a series of unmusical whistles and trills incorporating mimicry of other birds.
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