Sombre Greenbul
Andropadus importunus
The adult is a uniform drab-olive greenbul, slightly paler on the belly, with striking pale eyes that are characteristic. Juveniles have dark eyes and a small yellow gape. Pairs skulk and can be quite secretive in the midstory and canopy of forest, forest edge, and thickets up to 2000 meters of elevation, foraging on fruits and insects. It is often first detected by its loud, shrill “Willie! …..come out and play with me” song, ending with a nasal “sca-a-ared.” Northern birds sing a different song with a similar quality.
识别特征
The sombre greenbul is 15–18 cm long, with mainly dull greyish olive-green plumage, paler on the underparts than above. There are variations in colour based on habitat range. Individuals located in southern Africa tend to be plain, olive-green. To the north, birds are yellower with greener upper parts. It has a white iris. The sexes are similar in plumage, but juveniles are even duller than the adult and have dark, grey eyes. There is no colour distinction among sexes. The subspecies A. i. hypoxanthus is much yellower below than the nominate subspecies.<p>The sombre greenbul is a vocal species, and the most typical call is a monotonous, ringing phrase starting with a penetrating single whistle weeeewee, followed by a jumbled chortle and ending off with a rather plaintive, drawn-out whistle willy. If agitated, a call of peeet peeet peeet repeatedly is likely to be heard.
分类信息
Eighteen species of greenbuls originally described in the genus Andropadus were re-classified to the genera Arizelocichla, Stelgidillas and Eurillas in 2010. This has left Andropadus as a monotypic genus with the sombre greenbul remaining as its sole extant species.<p>The sombre greenbul was originally described in the genus Turdus and was later re-classified to the genus Andropadus. Alternatively, some authorities classify the sombre greenbul in the genus Pycnonotus. Alternate names for the sombre greenbul include the sombre bulbul, southern sombre bulbul and southern sombre greenbul.<p>Four subspecies of the sombre greenbul are recognized:<p>Formerly, some authorities also considered the following species (or subspecies) as species within the genus Andropadus:
- 学名
- Andropadus importunus
- 命名信息
- (Vieillot, 1818)
- 目
- Passeriformes
- 科
- Pycnonotidae
- 属
- Andropadus
分布与栖息地
- 迁徙
- Resident species
行为
The sombre greenbul is a common bird, which tends to stay hidden in foliage and is more often heard than seen. It is usually found in pairs or small groups foraging for insects, fruit and small snails.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
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Phacellodomus ruber
Large and bulky thornbird with a long tail, conspicuous yellow eyes, and a whitish throat. Cinnamon above and buff below. Found in woodland and scrubby areas near water, where it builds huge stick nests. The song is very loud and explosive and is usually delivered as a duet.
Crested Auklet
Aethia cristatella
Dumpy, dark alcid with pale eyes; very small, only slightly larger than a sparrow. Note the thin white “whiskers” trailing backwards from behind each eye. Breeding birds are dark gray-black overall, with a droopy forward-arching crest and a bright orange bill with an uptilted gape which gives them a maniacally grinning appearance. Non-breeding adults and immatures are duller, with a smaller, darker bill and the barest hints of a crest. Breeds in immense colonies on remote rocky islands and forages out at sea. Very vocal at colonies, but also gives occasional yapping barks when out foraging in groups.
Gray-headed Kingfisher
Halcyon leucocephala
A medium-sized kingfisher with a distinctive chestnut belly, sapphire blue tail and flight feathers, ashy-gray head and breast, and vermillion bill. Pairs inhabit dry and moist woodland, especially riverine woodland; has been known to breed in riverbanks. It has complex movements and is a migrant in the southern part of its range. Calls a strident trilling “t-t-t-t-t-t-t”, although this can be weaker and less obtrusive than other kingfishers; also calls a repeated, squeaky “tsury, tsury”.
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