Blue Rock-Thrush
Monticola solitarius
Medium-sized thrush-like bird, often seen on mountainsides, sea cliffs, quarries, ruins, and even towns. Males usually unmistakable: western birds are dark blue all over, but may appear all dark at a distance; eastern birds are blue with orange underparts. Females dark brown above, finely barred below. Long bill, wings, and tail make for a distinctive and very different shape than Rufous-tailed Rock-Thrush. Song is melodic and blackbird-like.
识别特征
The blue rock thrush is a starling-sized bird, 21–23 cm (8.3–9.1 in) in length with a long slim bill. The breeding male of the nominate subspecies is unmistakable, with all blue-grey plumage apart from its darker wings. Females and immatures are much less striking, with dark brown upperparts, and paler brown scaly underparts. The male of the subspecies M. s. philippensis has rufous-chestnut plumage from the mid-breast down to the undertail. Both sexes lack the reddish outer tail feathers of rock thrush.<p>The male blue rock thrush sings a clear, melodious call that is similar to, but louder than, the call of the rock thrush.
分类信息
The blue rock thrush was described by Carl Linnaeus in 1758 in the 10th edition of his Systema Naturae under the binomial name Turdus solitarius. The scientific name is from Latin. Monticola is from mons, montis "mountain", and colere, "to dwell", and the specific epithet solitarius means "solitary".<p>The rock thrush genus Monticola was formerly placed in the family Turdidae but molecular phylogenetic studies have shown that the species in the genus are more closely related to members of the Old World flycatcher family Muscicapidae.<p>There are five recognised subspecies:<p>There is a proposal to split Monticola solitarius into two species: a western taxon comprising M. s. solitarius and M. s. longirostris and an eastern taxon with M. s. philippensis, M. s. pandoo and M. s. madoci.
- 学名
- Monticola solitarius
- 命名信息
- (Linnaeus, 1758)
- 目
- Passeriformes
- 科
- Muscicapidae
- 属
- Monticola
分布与栖息地
The European, north African and southeast Asian birds are mainly resident, apart from altitudinal movements. Other Asian populations are more migratory, wintering in sub-Saharan Africa, India and southeast Asia. This bird is a very uncommon visitor to northern and western Europe. It has only known to have been spotted in North America twice: once in British Columbia in 1997 and once in Oregon in 2024.
- 迁徙
- Complete migrants
行为
Blue rock thrush breeds in open mountainous areas. It nests in rock cavities and walls, and usually lays 3-5 eggs. An omnivore, the blue rock thrush eats a wide variety of insects and small reptiles in addition to berries and seeds.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Violet-throated Metaltail
Metallura baroni
High-elevation hummingbird endemic to the Andes of southern Ecuador. Plumage is mostly green with a purple throat, and tail is blue on top and greenish underneath. Bill is short and straight. Female has underparts scaled with gray or buff. Compared to the common and widespread Tyrian Metaltail, Violet-throated lacks a rusty tail and has a purple (not green or buffy) throat. Inhabits montane scrub and edge of stunted forest. Most sightings come from in and around Cajas National Park.
Atherton Scrubwren
Sericornis keri
Small mostly terrestrial bird of rainforest and wet eucalypt woodlands in a very small range in the Atherton Tabelands of far northern Queensland. Brownish above, grayish yellow below, with long pointed bill, long pinkish legs, and off-white eyering. Forages for insects mostly on the ground or in the lower canopy. Compare Large-billed Scrubwren, which is paler, less likely to feed on the ground, slightly smaller, and has a more twittering call. Song is variable, often including repeated two-note elements.
Aberrant Bush Warbler
Horornis flavolivaceus
Small shy warbler. Dull brown with a paler belly and brow stripe. Like most bush-warblers, difficult to see as it moves through dense foliage. Listen for its sweet song, consisting of a few introductory notes followed by two long whistles: “ti-ti-tchew weeeeee-cheeeeee’. Visually very difficult to separate from Yellowish-bellied Bush Warbler and Brownish-flanked Bush Warbler, and differences are extremely subtle. Himalayan breeders average more greenish on the back than either of the other two species, and have a strong yellow wash on the belly; Brownish-flanked, with which Aberrant overlaps in the eastern Himalayas, is much browner overall. In central China, Aberrant overlaps with Yellowish-bellied, which has a pale gray throat instead of a yellowish-buff one. Aberrant breeds in shrubby edge, bamboo stands, and open bushy areas in montane and hill areas; upper altitudinal limit averages higher than both Yellowish-bellied and Brownish-flanked.
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