Long-billed Crombec

Sylvietta rufescens

A tiny, rotund, virtually tailless warbler with buff-orange underparts, gray-brown upperparts, and a dark eye-stripe that forms a buffy eyebrow. Pairs often join mixed-species flocks actively hopping along branches, occasionally hanging like mini-nuthatches, searching for invertebrates, and occasionally eating plant matter. Occupies broadleaf woodland, savanna, and arid scrub, where it is often detected by its quiet but distinctive faltering “chree-chirrit, chree-chirrit, chree-chirrit” song. The Red-capped Crombec has paler light gray upperparts and lacks the Cape Crombec’s eye-stripe, giving it a more open tawny face.

识别特征

The long-billed crombec is a small, nearly tailless bird 12 cm long and weighing around 16 g. Its upperparts are brownish grey-brown, and there is a pale grey supercilium, separated from the whitish throat by a dark eye stripe. The whitish breast shades into the buff belly. The long slightly curved bill is blackish.<p>The sexes are similar, and the juvenile resembles the adult. The call is a variable series of trilled notes including trreee-rriiit trreee-rriiit and a harsh pttt.

分类信息

学名
Sylvietta rufescens
命名信息
(Vieillot, 1817)
Passeriformes
Macrosphenidae
Sylvietta

分布与栖息地

迁徙
Resident species

行为

The long-billed crombec's nest is a large, hanging bag of grasses, spider webs, and plant fibres, which is attached to the lower limbs of a tree, often an Acacia. The one to three white eggs are incubated for two weeks to hatching, and the chicks are fed by both parents for another two weeks to fledging. This territorial species is monogamous, pairing for life.<p>This bird is usually seen alone, in pairs, or in family groups as it forages methodically from the bottom to the top of bushes and trees for insects and grass seeds. It will join mixed-species feeding flocks.<p>It moves between trees with a bouncy flight.

保护状况

This common species has a large range, with an estimated extent of 4,500,000 km². The population size is believed to be large, and the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as least concern.

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

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Budgerigar

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Iconic small green and yellow parrot found extensively across inland Australia. Largely nomadic, according to food and water availability. Usually found in small flocks zipping around overhead, but can congregate in staggering numbers under the right conditions. All native birds in Australia are green and yellow with a beautiful scalloped pattern on the upperparts and fine barring on the head. Small introduced populations and escaped birds scattered across the globe can include various other color forms such as blue and white.

Eurasian Treecreeper

Eurasian Treecreeper

Certhia familiaris

An inconspicuous little bird (plumage blends well with bark) of woods, forests, and gardens with larger trees. Usually seen as singles or pairs, creeping along trunks and branches using its tail for support, like a mini-woodpecker. Probes in crevices for insects and spiders, and often spirals up then drops to low on the next tree and spirals up again. In areas where Short-toed Treecreeper also occurs, the two species are often not safely distinguished without considerable experience; look for “uneven steps” on the wing, whiter sides, and slightly shorter bill. Listen for high, thin “tseee”s and trills. Song is a lovely series of falling whistles, typically preceded by short trills and concluded with a flourishing rising whistle.

Yellowish Pipit

Yellowish Pipit

Anthus chii

Rather dull buffy ground-dwelling bird with a large but disjunct range from Panama to Argentina. Streaky brown above and paler below with a streaked breast and plain belly. Note long pinkish legs and white outer tail feathers. Found in any flat open habitat including savannah, agricultural areas, and desert. Most often seen on the ground, occasionally perched up on a small shrub or fence. The only pipit in most of its range. Listen for the distinctive song, a few tick notes followed by a long descending buzzy “tzeeeeeeew,” often given in flight.

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