Canyon Wren
Catherpes mexicanus
Subtly beautiful wren found in picturesque canyonlands and rocky outcroppings of the western U.S. and Mexico. Exceptional songster most often located by rich cascading song, or harsh call notes. Rich orangey-brown body with tiny black-and-white spots, bright white throat, and thin decurved bill. Most similar to Rock Wren; note more contrasting white throat. Almost always on the ground or cliffs, running up and down rocks, repeatedly disappearing from view only to suddenly pop up atop a lookout. Feeds on insects. Nests in crevice or under ledge on cliff.
分类信息
The taxonomy of the species has been altered and debated for many years, with from three to eleven subspecies being proposed at various times. Generally, three subspecies are recognized. Originally in the genus Thryothorus, it was moved into the genus Salpinctes along with the rock wren (Salpinctes obsoletus), where some researchers still place it; however, generally, now, the species is in the only species in the genus Catherpes.<p>The three generally recognized subspecies are:<p>These subspecies are distinguished by the bill of C. m. albifrons which is generally longer than that of C. m. mexicanus, and its plumage paler, with upperparts more grayish brown, with narrower black bars on tail. In C. m. conspersus the plumage is paler and it is smaller than C. m. mexicanus.
- 学名
- Catherpes mexicanus
- 命名信息
- (Swainson, 1829)
- 目
- Passeriformes
- 科
- Troglodytidae
- 属
- Catherpes
分布与栖息地
Resident, although individuals may make short seasonal movements. It ranges from southern British Columbia in the Okanagan Valley and western and southern Idaho and southern Montana south through central Wyoming, Colorado throughout much of Mexico south to western Chiapas. It occurs east to southwest Oklahoma and in the Edwards Plateau of west-central Texas. Disjunct populations occur in the Black Hills of southwest South Dakota, northeast Wyoming and southeast Montana. During the winter season the distribution is generally the same; however, concentrations may occur in the Chihuahuan Desert of southwest Texas. Similar to the rock wren in habitat, the canyon wren prefers steeper rocky environments, particularly in arid landscapes and deep canyons and terrain (sometimes including buildings, woodpiles, and rock fences). This species regularly uses riparian areas for foraging and has bred away from rocky substrate.
- 迁徙
- Resident species
行为
It feeds on insects and spiders by probing into crevices with its long bill. Its coloration is rustier than that of the rock wren, with a contrasting white throat and breast. The canyon wren is more often heard than seen, and its falling series of whistles is one of the more familiar bird calls of the canyons of the western United States.<p>It builds a cup nest out of twigs and other vegetation in a rock crevice. It lays 4 to 6 eggs, white with reddish brown and gray speckles.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Buff-throated Saltator
Saltator maximus
Fairly common in humid tropical lowlands. Favors forest edges, plantations, and dense second growth. Usually seen singly or in pairs, foraging quietly in flowering or fruiting trees. Buff throat patch is bordered by black moustache stripes. Birds from western Panama north also show black chest band around buff throat. Note less contrast between head and back than larger Black-headed Saltator, and longer white eyebrow of Green-winged Saltator.
Rufous-headed Parrotbill
Paradoxornis bakeri
A short-tailed parrotbill with a bulbous orange head, found in hill and submontane forests. Brown above and white below. Very similar in appearance to the smaller Pale-billed Parrotbill; look for the latter’s short black eyebrow. Confusingly, both species are often found alongside one another in mixed flocks, typically with White-hooded Babblers. Gives chirps, squeaks, and mews frequently as it moves through bamboo thickets; also gives a distinct song composed of whistled notes.
Somali Wheatear
Oenanthe phillipsi
An unusual and distinctive wheatear with a dark throat, face, and chest. The crown is gray in both sexes, but the throat and breast are black in males and gray in females. The tail shows a bold black-and-white “T” pattern that is conspicuous in flight. Found in arid savanna, desert, open thorn scrub, and semidesert. Similar in shape and behavior to other wheatears, but distinguished by the combination of a dark breast and gray crown and back. Calls include whistles and “tik” notes.
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