Abyssinian Roller
Coracias abyssinicus
A slim and beautiful roller with very long outer tail feathers. In flight, the spectacular wings are half pale blue and half dark blue. Found in dry savanna and other open country. Usually seen singly or in pairs. Easily separated from Lilac-breasted Roller by the blue throat. Occasionally lacks elongated outer tail feathers, and then very similar to European Roller, but separated by the dark blue rather than black outer wing. The calls are rough rasps.
识别特征
The Abyssinian roller is a large bird, nearly the size of a jackdaw at 28–30 cm (11–12 in). It has a warm brown back, with the rest of the plumage mainly blue. Adults have 12 cm (4.7 in) long tail streamers. Sexes are similar, but the juvenile is a drabber version of the adult. Abyssinian roller is striking in its strong direct flight, with the brilliant blues of the wings contrasting with the brown back and the long tail streamers trailing behind. The call of the Abyssinian roller is a harsh crow-like gak sound, or a screeched aaaargh.
分类信息
The phylogenetic relationships among the Coracias species are shown below, from the molecular study by Johansson et al. (2018)
- 学名
- Coracias abyssinicus
- 命名信息
- Hermann, 1783
- 目
- Coraciiformes
- 科
- Coraciidae
- 属
- Coracias
分布与栖息地
The Abyssinian roller is native to tropical Africa. Its range extends from southern Mauritania and Senegal in the west and to Ethiopia, Somalia and northern Kenya in the east. It also occurs in south-western Saudi Arabia and western Yemen. This is a common bird of warm open country with some trees, and has adapted to farmland and human habitation.
- 迁徙
- Complete migrants
行为
Abyssinian rollers often perch prominently on trees, posts or overhead wires, like giant shrikes, whilst watching for the large insects and small rodents on which they feed. They will dash into the smoke of a forest fire for disturbed invertebrates. They are fearless, and will dive and roll at humans and other intruders. The display of this bird is a lapwing-like display, with the twists and turns that give this group its English name. It nests in a scantily lined hole in a tree or building, and lays three to six eggs.
保护状况
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
Painted Parakeet
Pyrrhura picta
Beautifully patterned small parakeet found in northern South America. Mostly green body with a dark red belly and maroon tail. Complex head pattern: mostly deep brownish-maroon with pale cheek, blue crown, and scaly breast. Found in forests, edges, and savannah mostly in lowlands and foothills. Typically seen in fast-flying flocks, but look for them feeding in fruiting trees.
Chestnut-headed Sparrow-Lark
Eremopterix signatus
A typical sparrow-lark in which males are colorful and well-marked, and females rather drab. The male has variable black and chestnut markings on the face surrounding a bright white cheek that continues as a stripe down the side. Females are plain, but show a rufous eyebrow and a black mark on the belly. Found in dry and open habitats including desert, grassland, and savanna, usually in flocks. Details of the plumage always distinguish males, but females can be tricky; they are most similar to female Fischer’s Sparrow-Lark, but have very little overlap in range. The call, frequently given in flight, is a simple chirping.
Clicking Shrike-Babbler
Pteruthius intermedius
A handsome little bird with a stain the color of dried blood on its throat and lores. Bright yellow overall with black-and-silver eye rings and wingbars. Like most other shrike-babblers, tends to be rather slow and not particularly acrobatic, often trailing along on the edges of mixed flocks in hilly and submontane broadleaf forests. Gleans insects from foliage with a finely-hooked silvery bill. Gives a strong, insistent, and repetitive “wiCHE, wiCHE, wiCHE, wiCHE.”
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