Stresemann's Bristlefront
Merulaxis stresemanni
Teetering on the brink of extinction. Fairly large tapaculo with a long tail and a crested forehead. Males are uniform slaty-black and females are dark brown above and rusty below. The song is a descending series that starts slowly and accelerates towards the end. Occurs in a few disparate patches of humid forest and forest edge, where it forages on the ground. The similar Slaty Bristlefront has brown on the rear of the body, and females have darker underparts; the song of Slaty is lower in pitch.
识别特征
Stresemann's bristlefront is a medium-sized, long-tailed bird with distinctive forehead bristles. It measures 20 cm (7.9 in) long. The male is all slaty gray with a dark rufous-chestnut rump, uppertail-coverts, and vent. The namesake features are long, pointed bristles on the forehead. The female is cinnamon-brown above, with a duskier tail, and is bright cinnamon below.
分类信息
Stresemann's bristlefront and the slaty bristlefront (Merulaxis ater) form a superspecies, and the two might actually be one species. It has no subspecies. It is known only from three specimens and a few photographs, audio recordings, and sight records.
- 学名
- Merulaxis stresemanni
- 命名信息
- Sick, 1960
- 目
- Passeriformes
- 科
- Formicariidae
- 属
- Merulaxis
分布与栖息地
Stresemann's bristlefront's natural habitat is subtropical or tropical moist lowland forest. It is threatened by habitat loss, and the Mata do Passarinho Reserve is the last known area to house Stresemann's bristlefront. The Atlantic forest reserve is in the states of Minas Gerais and Bahia and contains primary forest as well as secondary forest, and is an island of forest surrounded by farmland.
- 迁徙
- Resident species
行为
A Stresemann's bristlefront was observered "foraging on the ground and on fallen tree trunks in an area of drier forest between two humid valleys". It has been seen to feed on insects.<p>The first known Stresemann's bristlefront nest site was a tunnel estimated to be 6 ft (1.8 m) long. The nest itself was not described.<p>The Stresemann's bristlefront song starts with clicks followed by a trill. It is similar to that of the closely related slaty bristlefront but lower pitched. It readily responds to playback.<p>The Stresemann's bristlefront is one of the rarest birds on earth. The IUCN has assessed it as Critically Endangered. An extensive search was performed in 2019, and the species was last seen in a tiny forest remnant, now set aside as the Mata do Passarinho Reserve. The IUCN believes that fewer than 50 mature individuals survive. "The species' known range is tiny (35 km2 (14 sq mi))...and the little remaining forest is disappearing rapidly; although this species is legally protected, there seems little hope for its survival."
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Brehm's Tiger-Parrot
Psittacella brehmii
A medium-sized parrot of mid-montane forest and edge. Green body with barred back and rump, brown face with pale silver bill and red under the tail. Male has yellow crescent bordering the brown face and female has additional barring on underparts. Forages sluggishly at all levels and easily overlooked, although sometimes flushed from tracks where it takes grit. Similar to Painted Tiger-Parrot, but Brehm’s is larger, has a green rump and brown cheeks. Call, a whining, nasal “chew!”, or an upslurred “chuuit!”.
Purple-capped Fruit-Dove
Ptilinopus ponapensis
Colorful forest dove found solely on the Caroline Islands of Chuuk and Pohnpei; the only fruit-dove on these islands. Adult has a bright purple cap, leaf-green back and wings, and a broad lemon-yellow tail tip. Juvenile is green all over, but with darker wings. Forages in trees and bushes, feeding primarily on fruit. Song is a series of coos that accelerate before tapering off quietly.
Matinan Flycatcher
Eumyias sanfordi
A chunky, drab flycatcher with a heavy hooked bill. Has a gray head with indistinct pale marking around the eye. Warmer olive-brown above with rufous-tinged tail, wings, and rump; underparts pale gray. Juvenile grayish with bold speckling on the chest. Inhabits understory of montane forest. Restricted to northern Sulawesi. Lacks the white belly of female Blue-and-white Flycatcher and the yellow belly of Sulphur-bellied Whistler. Short, melodious song is a burst of jumbled warbling notes that regularly rises and falls in pitch.
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