Gray-barred Wren
Campylorhynchus megalopterus
Large, noisy wren of pine-oak and conifer forests in mountains of south-central Mexico; endemic. Usually found in groups, foraging low in brushy tangles or high in tall trees. Clambers along branches and pokes into bromeliads, often in mixed-species feeding flocks with orioles and woodcreepers. Plumage is distinctive, with boldly spotted breast and boldly banded back, wings, and tail. Juveniles (seen in summer) are very different, with streaked buffy back and plain whitish breast.
识别特征
The gray-barred wren is 17 to 19.5 cm (6.7 to 7.7 in) long and weighs 32.8 to 33.5 g (1.16 to 1.18 oz). Both sexes of the nominate have a grayish crown with a black center, a black and white striped nape, and black shoulders and back barred with white. Their throat and chest are white with black spots and the flanks buff with blackish bars. C. m. nelsoni is the smaller of the subspecies and its underparts' spots and bars are grayish brown. The juvenile has a solid brown cap and is buff and brownish overall with no bars on the back and no spots on the chest.
分类信息
The gray-barred wren has two subspecies, the nominate Campylorhynchus megalopterus megalopterus and C. m. nelsoni. The latter has been suggested as a separate species but there are only small differences between the subspecies in size and plumage and no apparent differences in their voices.
- 学名
- Campylorhynchus megalopterus
- 命名信息
- Lafresnaye, 1845
- 目
- Passeriformes
- 科
- Troglodytidae
- 属
- Campylorhynchus
分布与栖息地
The ranges of the two subspecies of gray-barred wren do not meet. The nominate is found in the Trans-Mexican Volcanic Belt from Jalisco and Michoacán east to western Puebla. C. m. nelsoni is found in the southern Sierra Madre Oriental from west-central Veracruz through eastern Puebla into northern Oaxaca. It inhabits several types of montane forest including humid pine-oak and stands of Abies fir. It occurs in both primary and secondary forest. In elevation it ranges between 2,100 and 3,150 m (6,890 and 10,330 ft).
- 迁徙
- Resident species
行为
Though the gray-barred wren's diet has not been documented, it is probably small invertebrates. It does not forage on the ground but probes epiphytes, mosses, and lichens.<p>The gray-barred wren's breeding season appears to be May to June. Its nest is a domed structure with a side entrance constructed of moss and placed high in a tree. Little else is known about the species' breeding phenology.<p>The gray-barred wren's song is "a rapid harsh chatter" [1]; both sexes sing in duet. Its call is "a harsh 'karrr'" [2].
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Lesser Black Coucal
Centropus bernsteini
A mid-sized coucal of the lowlands. All black with a dark eye. Found in forest edge, scrub and grassland. Skulking, but not as difficult to see as some other coucals and sometimes sits out on an exposed branch to call or dry off after rain. Similar to Pheasant Coucal, but Lesser Black Coucal has plain black wings with no barring and a dark eye. Call a series of descending “hoop” notes. Pairs often duet.
Fan-tailed Berrypecker
Melanocharis versteri
A fairly small, long-tailed bird of montane forest. Male has black upperparts, gray underparts with white tufts on the sides and white in the base of the outer tail feathers. Female is olive, with yellowish tufts on the sides and a dotted bar in the base of the outer tail feathers. Female is similar to female Papuan Whipbird, but Fan-tailed Berrypecker has a paler belly, side streak, white in the tail, and pale around the base of the bill. Voice, a repeated, falling, nasal “weh!” and a high-pitch clicking call.
Green-and-gold Tanager
Tangara schrankii
Small green tanager of lowland rainforest. Looks mostly green with a black mask and yellow belly. Sexes alike. One of the most common mature forest tanagers and a regular member of mixed-species flocks. Regularly seen both high in the canopy and lower inside the forest understory.
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