Rufous-backed Stipplethroat
Epinecrophylla haematonota
Scarce antwren found mainly in lowland rainforest, but ranges up into mountains in the northern part of its range. Male has mostly gray underparts, black-and-white spots on throat, and whitish or tan spots and bars on wings; back color varies geographically from brown to chestnut. Female is brown, lacks throat markings, and has less distinct wing markings. Dull brown tail distinguishes it from Rufous-tailed Stipplethroat. Male’s checkered throat and female’s lack of throat markings help separate it from Ornate Stipplethroat. Almost always encountered in mixed-species understory flocks with antshrikes and other antwrens. Song is a high-pitched, descending trill; also often gives a dry rattle.
识别特征
The rufous-backed stipplethroat is 10 to 11 cm (3.9 to 4.3 in) long and weighs 8 to 10.5 g (0.28 to 0.37 oz). Adult males of the nominate subspecies E. h. haematonota have a mostly light gray face and a black throat with white spots. They have a grayish olive-brown crown and mantle, and deep rufous back, tail, and flight feathers. Their wing coverts are blackish brown with pale buff or white tips. Their breast and upper belly are light gray and their lower belly, flanks, and undertail coverts yellow-brown. Adult females have a mostly light yellowish olive-brown face and underparts. The tips of their wing coverts are pinkish buff. Their throat is white to pale buff, usually with dark feather bases visible, and sometimes with black streaks. Males of subspecies E. h. pyrrhonota have brighter rufous uppersides than the nominate. Females have a yellow-ochre face and throat; the latter is unmarked. Their breast and belly are reddish yellow-brown to reddish-tinged buff, and their flanks and undertail coverts are olive-brown. Males of subspecies E. h. fjeldsaai have an olive-brown crown, dark yellowish brown upperparts, and rufous-tinged flight feathers and tail that are darker than the nominate's. Females have an ochraceous face, a dark-streaked mostly white chin and throat, and buffy brown underparts.
分类信息
The rufous-backed stipplethroat was described by the English zoologist Philip Sclater in 1857 and given the binomial name Formicivora haematonota. It was later placed in genus Myrmotherula . Based on genetic and vocal studies it and seven other members of that genus were moved to the newly created genus Epinecrophylla. All were eventually named "stipplethroats" to highlight a common feature and to set them apart from Myrmotherula antwrens.<p>Since 2019 taxonomists have recognized these three subspecies within Epinecrophylla haematonota:<p>For a time previously each of these had been treated as separate species, the rufous-backed (or Napo stipple-throated) antwren (E. haematonota), Negro stipple-throated antwren (E. pyrrhonota), and Yasuni antwren (E. fjeldsaai). The three were returned ("lumped") to subspecies status following results of a study of their vocalizations.
- 学名
- Epinecrophylla haematonota
- 命名信息
- (Sclater, PL, 1857)
- 目
- Passeriformes
- 科
- Thamnophilidae
- 属
- Epinecrophylla
分布与栖息地
The nominate subspecies E. h. haematonota of the rufous-backed stipplethroat is found in eastern Peru south of the Napo and Amazon rivers between the departments of Loreto and Madre de Dios and in the adjacent Brazilian states of Amazonas and Acre. Subspecies E. h. pyrrhonota is found in southeastern Colombia, southern Venezuela, extreme northeastern Ecuador, northeastern Peru north of the Napo and Amazon, and the northwestern Brazilian states of Amazonas and Roraima. Subspecies E. h. fjeldsaai is found in southeastern Ecuador south of the Napo and adjoining extreme north-central Peru.<p>The rufous-backed stipplethroat primarily inhabits terra firme evergreen forest. Subspecies E. h. fjeldsaai is also found in transitional forest and in lesser numbers in várzea forest. In elevation it mostly occurs below 500 m (1,600 ft) but reaches 1,300 m (4,300 ft) in Venezuela and northern Brazil and 1,100 m (3,600 ft) in Colombia. In Ecuador it reaches only 250 m (800 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
White-browed Coucal
Centropus superciliosus
A large, robust, ungainly cuckoo with rufous wings and a long, broad tail. Shows a solid dark cap and back of the head, and white underparts. Unlike other coucals, shows an obviously barred rump and upper tail coverts. It often moves clumsily, preferring to clamber about in rank vegetation or walk on the ground foraging for insects or small vertebrates. Its flight is labored and heavy. This species uses a wide variety of habitats with a thick understory, including savanna, woodland, forest edge, and wetlands. The song is a deep descending bubbling series, “bu-bu-bu bu bu bu bu”, that falls and then rises in pitch.
Sula Hanging-Parrot
Loriculus sclateri
A tiny stub-tailed green parrot with a golden-bronze back, a narrow red throat, a bright red rump, and a small red shoulder patch. Juveniles are duller and more poorly marked. Singles or small groups occur within treetops of forest and nearby secondary growth areas in the lowlands. No other tiny green, short-tailed parrot occurs within its limited range in the Sula and Banggai islands. Very high-pitched calls include “zeet-weet-wit,” rising in pitch at the end. Sometimes birds only utter the first two notes or single “zeet” notes.
Hoffmann's Woodpecker
Melanerpes hoffmannii
Medium-sized woodpecker with bold black-and-white barring on back and a cream-colored belly. A patch of yellow on the lower belly can be difficult to see. Male has red crown and yellow nape. Female lacks red crown. Distinctive in range, but hybridizes with Red-crowned Woodpecker; hybrids best left unidentified. Found in open woodland, edges, and gardens.
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