Red-breasted Chat
Granatellus venustus
Easily overlooked, warblerlike bird of tropical forest in lowlands and foothills of west Mexico and extreme western Guatemala. Hops around, mainly at low levels in tangled understory, often fanning and waving around its rather long, white-edged tail. Male is striking, with red breast and bold black-and-white head pattern. Female-plumaged birds are seen more often and can be puzzling, but note buffy face and breast with a dark beady eye, mostly grayish upperparts, and white-edged tail.
识别特征
The red-breasted chat is 14.5 to 16 cm (5.7 to 6.3 in) long; 12 specimens weighed between 10.2 and 11.4 g (0.36 and 0.40 oz). The adult nominate male's upperside is mostly bluish gray. Most of the face is black, though it has a broad white supercilium, and there is a black band across the chest. The chin, throat, sides, and flanks are white; the chest, lower breast, belly, and vent area are vermilion. The adult female's upperparts are slate gray. Most of its face is shades of buff and gray. Its breast and belly are buff and the vent area salmon pink.<p>The immature male's head and upperparts are similar to those of the adult but with less black. The throat and underparts are whitish with a pink wash to the rear. The immature female is similar to the adult.
分类信息
The genus Granatellus was traditionally placed in family Parulidae, the New World warblers. Studies of DNA sequences in the early 2000s resulted in its being moved to its present family. The red-breasted chat and the other two members of its genus, gray-throated chat (G. sallaei) and rose-breasted chat (G. pelzelni) form a superspecies.<p>The red-breasted chat has two subspecies, the nominate Granatellus venustus venustus and G. v. francescae.
- 学名
- Granatellus venustus
- 命名信息
- Bonaparte, 1850
- 目
- Passeriformes
- 科
- Parulidae
- 属
- Granatellus
分布与栖息地
The nominate red-breasted chat is endemic to western Mexico. It is found year-round from Sinaloa south to the Isthmus of Tehuantepec and from there into interior Chiapas and possible into northern Guatemala, though there are no records there. It also occurs inland to Morelos along the Balsas River. G. v. francescae is restricted to Islas Marías off Nayarit. It primarily inhabits thorn forest and scrubby woodland and can be found in the understory of secondary forest and other heavy growth. In addition, the species has been reported in evergreen swamp forest inland of mangrove swamps and along rivers. In elevation it generally ranges from sea level to 1,200 m (3,900 ft) though locally it occurs as high as 1,600 m (5,200 ft).
- 迁徙
- Resident species
行为
Little is known about the red-breasted chat's foraging habits or diet. It is assumed to eat insects and other arthropods.<p>The red-breasted chat breeds in the wet season, from May to September. Its nest is a cup made of Spanish moss and other fibers lined with finer material. The clutch size is two to four. Females alone incubated the nests but both sexes provided food to nestlings.<p>The red-breasted chat's song is a repeated "variable, fairly sweet warble" [1]. Its call is a repeated "wet plek or plik" [2].
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Swierstra's Spurfowl
Pternistis swierstrai
Rare and unusual francolin that is endemic to Angola. Note the red bill and legs, mostly white face, black breast band, and black-striped white underparts. Found very locally in montane forest and along forest edge, often in rocky and grassy areas. Shy and elusive. The common vocalization is a series of rough “kurr-kraak” calls that become louder and more emphatic, then fade away. Distinguished from other francolins in its range by the bold white face and black breast band.
Bronze-tailed Starling
Lamprotornis chalcurus
A beautiful, glossy green-and-purple starling. There is a stripe through the eye that sometimes looks black and sometimes deep purple. The eye is reddish-orange. Juveniles are dull and blackish. Found in a wide variety of savanna habitats, from moist broadleaf woodland to dry thorn savanna. Also found in villages, towns, and cultivated areas. Very similar to Lesser and Greater Blue-eared Starlings, but separated by the purple rather than greenish tail and the darker reddish eye. The vocalizations include rising whistles, nasal whines, and long series of chattering notes.
Buffy-crowned Wood-Partridge
Dendrortyx leucophrys
Very elusive, chickenlike bird of humid evergreen and pine-evergreen forests and adjacent shade-coffee plantations in the highlands of extreme southeast Chiapas and from Guatemala to Costa Rica. Usually in pairs or small groups on the forest floor; may be seen beside quiet trails and roads early and late in the day. Runs away quickly and rarely flies. Note the white crown and throat, dark bill, and red eyering. Loud rollicking songs are given mainly early and late in the day and most often reveal its presence.
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