Marañon Spinetail
Synallaxis maranonica
Very shy spinetail restricted to the Marañon Valley of northwestern Peru and extreme southern Ecuador; highly threatened due to ongoing habitat loss. Plumage is mostly gray with chestnut back, wings, and tail. Inhabits dense tangles inside forest, often in damp gullies or near rivers and streams. Hard to see well, and usually first detected by voice. Typical song is a whining “chew, pit-year” repeated every few seconds.
识别特征
The Maranon spinetail is 14 to 16 cm (5.5 to 6.3 in) long and weighs 16 to 17 g (0.56 to 0.60 oz). The sexes have the same plumage. Adults have a dark brownish gray face and forehead. Their crown and upper back are dark grayish brown that become more rufescent brown by the rump and uppertail coverts. Their wings are dark rufous with dark fuscous tips on the flight feathers. Their tail is dark rufous; it is graduated and the feathers have blunt tips. Their throat is pale grayish, their breast darker brownish gray, their belly a lighter brownish gray, and their flanks gray with an olive tinge. Their iris is brown, their maxilla black to dark gray, their mandible blue-gray, and their legs and feet gray to olive. Juveniles have faint dark scallops on the breast and belly and a pinkish yellow mandible.
分类信息
The Maranon spinetail was previously treated as a subspecies of the plain-crowned spinetail (S. gujanensis). Recognition of plumage, vocal, and genetic differences led to their separation. The Marañon spinetail is monotypic.
- 学名
- Synallaxis maranonica
- 命名信息
- Taczanowski, 1879
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Synallaxis
分布与栖息地
The Maranon spinetail is found in the valley of the Marañón River from far southeastern Ecuador's Zamora-Chinchipe Province south into the northern parts of Peru's departments of Cajamarca and Amazonas. It inhabits the undergrowth of semihumid gallery forest, secondary forest, and deciduous woodlands along rivers, and occurs less often at the edges of humid forest. In elevation it ranges between 650 and 1,200 m (2,100 and 3,900 ft) in Ecuador and 450 and 1,850 m (1,500 and 6,100 ft) in Peru.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Purple Sandpiper
Calidris maritima
Plump, rock-loving shorebird with slightly droopy bill. Most often seen in nonbreeding plumage, which is fairly dark gray with spotted underparts. Namesake purple sheen (mostly on back, scapulars, and tertials) only visible at close distance in good light. Legs and base of bill usually bright orange. Messy-looking breeding plumage is darker and more heavily marked, with limited rusty tones on upperparts. Largely inaccessible breeding range on high Arctic tundra; most often seen in northern Europe, Spitsbergen, and Iceland. Winters at slightly lower latitudes, regularly south to the mid-Atlantic region in North America and the Iberian Peninsula in Europe; found in flocks on rocky coastlines and jetties pounded by heavy surf.
Scaly-throated Foliage-gleaner
Anabacerthia variegaticeps
Rather active, arboreal bird of humid evergreen forest in foothills and highlands. Forages at all levels clambering along branches and amid mossy tangles and epiphytes, at times hanging upside down like a chickadee. Often in pairs or small groups; frequently joins mixed-species feeding flocks. Note the behavior, grayish head with rich buffy spectacles, and pale buff throat (scaly markings often hard to see).
Asir Magpie
Pica asirensis
A crow-like bird with a long, narrow tail. Flashy black-and-white pattern distinctive within range. An endangered species, this is a rare but conspicuous bird of juniper forest and riverine scrub between 2200–3000m in the Asir massif of southwestern Saudia Arabia, where it typically moves in pairs and small family groups. Very vocal, often giving loud querulous grating “kuaynk-kuaynk” calls and high-pitched woodpecker-like “keenk” notes. Does not overlap in range with Eurasian Magpie, but Asir has less white in the plumage, a larger bill, and a shorter tail.
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