Rufous Shrikethrush
Colluricincla rufogaster
A chunky bird with a thick pale bill. Shows lots of geographical variation, ranging from mostly rich rufous birds in southern New Guinea to birds that are gray on the back and buffy below, often with a paler throat and/or vague streaking on the underparts, in the Australian portion of the range. Found at low elevations in a variety of moist forest, including secondary forest, gallery forest, swamp forest, and mangroves. Rich, melodious, variable song consists of several penetrating whistles. A classic pattern is several accelerating whistles, followed by a couple of upslurred notes. Calls include “chak” notes and whiny nasal notes. Similar to Gray Shrikethrush, but found in denser habitats, and appears smaller, shorter-tailed, and browner overall, with buffy underparts. Also similar to Rusty Pitohui, but smaller, with a dark rather than pale eye.
分类信息
This species was formerly considered a conspecific member of the little shrikethrush complex. Genetic investigations of New Guinea populations of the little shrikethrush indicate high levels of genetic divergence, suggesting it comprised more than one species.<p>Currently, three subspecies are recognized:
- 学名
- Colluricincla rufogaster
- 命名信息
- Gould, 1845
- 目
- Passeriformes
- 科
- Pachycephalidae
- 属
- Colluricincla
分布与栖息地
It is found in New Guinea and Australia. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests.
行为
During a study of toxicity in birds, two specimens of this species were tested. One of these specimens contained traces of batrachotoxins (BTXs) similar to those found in the secretions of Central and South American poison dart frogs.
照片
鸟叫声
其他鸟类
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Large and impressive toucan with a huge orange bill with a black tip and base. The body is mostly black with a white throat, and rump, and a red vent. Dark eyes are surrounded by orange and blue skin. Found in savanna and open woodland, avoiding humid forests. Makes a raucous far carrying croaking “wreh” call, and flies with noisy wingbeats.
Rufous-naped Ground-Tyrant
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Widespread terrestrial flycatcher of Andean habitats, ranging locally to foothills in winter. Found in varied habitats from puna plains and bogs to scrubby slopes and agricultural terraces. Perches on weed stalks and shrubs more often than other ground-tyrants. Plumage blue-gray overall with rusty nape patch (rusty in south, paler cinnamon in middle of range, and darkest in north—perhaps three cryptic species); nape patch can be hard to see, but note relatively fine and slightly tipped bill, unlike similar species.
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