Russet-naped Wren
Campylorhynchus humilis
Large wren usually found in small groups, less often in pairs. Mainly found in thorn forest and dry scrubby habitats. Note boldly barred wings and tail and russet nape patch. At most only limited overlap with the formerly conspecific Rufous-backed Wren; in Russet-backed the barring and spotting on the upperparts is more prevalent, and whatever rufous coloration is present is generally not as bright. Often detected by its marvelous loud song, often given by multiple birds at once, which consists of various nasal and whistled notes, with some harsh elements mixed in.
识别特征
The adult Sclater's wren has a reddish brown crown, blackish lores and eyestripe, and a white supercilium. Its nape and back are chestnut and its tail is gray-brown with darker bars and a white tip. Its chin and throat are white, the chest pale buff, and its belly a darker buff with faint blackish bars on the flanks. The juvenile is similar but its supercilium is buffy white, the back a duller chestnut, and the markings on the back less distinct.
分类信息
What is now Sclater's wren was previously treated as one of eight subspecies of rufous-naped wren (Campylorhynchus rufinucha). A 2009 publication proposed that Campylorhynchus rufinucha (sensu lato) be split into three species and the International Ornithological Committee (IOC) accepted the splits. What had been C. r. humilis was elevated to species status as Sclater's wren. The reduced C. rufinucha received the new English name Veracruz wren and the other six subspecies became subspecies of C. capistratus, the rufous-backed wren.<p>BirdLife International (BLI) has implemented the split but retains the English name rufous-naped wren for C. rufinucha. However, the North American Classification Committee of the American Ornithological Society (NACC/AOS) and the Clements taxonomy have not accepted the split as of early 2021.
- 学名
- Campylorhynchus humilis
- 命名信息
- Sclater, PL, 1857
- 目
- Passeriformes
- 科
- Troglodytidae
- 属
- Campylorhynchus
分布与栖息地
Sclater's wren is endemic to Mexico. It is found in from Colima south through Michoacán to Guerrero and east to Oaxaca and southwestern Chiapas. It inhabits lowland dry tropical forest, primarily in arid and semi-arid areas. It also occurs in human-modified landscapes and coastal mangroves. In elevation it ranges from sea level to 1,200 m (3,900 ft).
- 迁徙
- Resident species
行为
Sclater's wren preys on a variety of insects.<p>Little information is available on Sclater's wren's breeding phenology. It is known to build a globular nest with a side entrance like the other species in its genus. It typically constructs them in thorny bushes and trees, especially Vachellia collinsii.<p>An example of the Sclater's wren song is [1]. An example call is [2].<p>The IUCN has assessed Sclater's wren as being of Least Concern. "The population has not been quantified since the species was split" but "is suspected to be stable in the absence of evidence for any declines or substantial threats."
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Antillean Siskin
Spinus dominicensis
A gregarious small seed-eating bird of pine forests and forest openings that also visits agricultural areas near dry scrubby forests. The male is unique in appearance with green upperparts, yellow underparts, a black head, and a thick pale bill. Females of this species resemble female and nonbreeding Village Weavers, but the Village Weavers are substantially larger, have a distinct pale eyebrow, a dark bill and pink legs. Calls include a “jut-jut,” a shrill and buzzy “zzhhreeeee,” and a buzzy insect-like “zzzzzzzzzt” that is upward inflected.
Burnished-buff Tanager
Stilpnia cayana
A common tanager of savannas, forest borders, woodlands, and gardens. Often seen in pairs or with other species at fruiting trees, but usually not with mixed-species flocks. Males have a black face, throat, breast, and belly that is flanked by buffy sides. The crown and back are also buff and the wings and tail are dark-green. Females are buffy below with greenish back and wings, a pale throat, and a faint mask. The northern subspecies has a black mask (lacking the black throat and belly) with a violet gray throat and buffy belly.
Broad-billed Tody
Todus subulatus
A small, gemlike species of woodlands including coffee plantations and mangroves. The rather large head, long bill, and short tail create a profile shared only by the Narrow-billed Tody within its range. Both species have bright green upperparts and red on the throat and sides. Note especially the dark eyes of Broad-billed Tody, as compared to the pale eyes of Narrow-billed. Many Broad-billed Todys also have a buff-yellow wash below, which the Narrow-billed lacks. On birds lacking buff below, the Broad-billed can be identified by its all red lower bill, which is black tipped in the Narrow-billed. Further clues to identification include altitude, with this species occurring mostly below 700 meters elevation and the Narrow-billed occurring above 700 meters. The Broad-billed also tends to forage higher and on more open perches. Its most common vocalization is a rough, quick “weep” or “whip” given in series at about two per second. Compare to call of Narrow-billed Tody, which utters a buzzy “chik-zhwik” and a rapid buzzy chatter.
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