Jocotoco Antpitta
Grallaria ridgelyi
Large antpitta with a tiny range in southeast Ecuador. Unmistakable. Typical antpitta shape: plump and short-tailed with long legs, like a grapefruit on stilts. Brown above and pale silvery-gray below with a black cap and thick white mustache patch. Rare and local on or near the ground in the upper subtropical zone from around 2,300 to 2,600 m; especially fond of bamboo patches. Essentially never seen away from the Tapichalaca Reserve in Ecuador, where several birds have been trained to eat worms.
识别特征
The jocotoco antpitta is a large (150–200 g) antpitta with a striking head pattern showing tufts of white plumes beneath the eyes. It has a song similar to the hooting of the rufous-banded owl.
分类信息
Its closest relatives appear to be the chestnut-naped antpitta and the pale-billed antpitta, with which it forms a group of antpittas with uniform breast plumage and smoky-grey flanks.<p>This bird's specific name honors the ornithologist Robert S. Ridgely, who took part in the initial discovery of this species. The common name refers to the local name of the bird, jocotoco, which is onomatopoetic after its hooting calls and song.
- 学名
- Grallaria ridgelyi
- 命名信息
- Krabbe, Agro, Rice, Jacome, Navarrete & Sornoza-Molina, 1999
- 目
- Passeriformes
- 科
- Grallariidae
- 属
- Grallaria
分布与栖息地
The antpitta is known only from a very small number of locations in southeastern Ecuador and adjacent Peru, and appears to be declining. It was believed to be limited to the upper Chinchipe River drainage in Zamora-Chinchipe, Ecuador, but in 2006 a population was discovered in Cordillera del Cóndor in Cajamarca, Peru. It inhabits only wet, mossy forest with ample Chusquea bamboo stands and silvery-leaved Cecropia trees. It is found at altitudes of 2,250 to 2,700 meters.
- 迁徙
- Resident species
保护状况
To protect the presumably small population, the Tapichalaca Biological Reserve was established on behalf of Fundación de Conservación Jocotoco in 1998.<p>The IUCN classifies it as endangered (B1ab(i, ii, iii, v)). This means that based on available data, it is estimated to occur in no more than five locations over a total area of less than 5000 km², with both habitat quality and availability, and numbers declining, and some of the subpopulations in danger of disappearance. Owing to its shyness and the call, which might be mistaken for that of a rufous-banded owl, it could be more widespread than now known, although surveys at several seemingly appropriate localities have failed to find any evidence of it.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Pitt Island Shag
Phalacrocorax featherstoni
A small, slender gray shag, with a slender bill, yellow legs and feet, and small dark spots on its shoulder and wing feathers. Feeds, roosts, and breeds around rocky shorelines of the Chatham Islands. The Chatham Islands Shag and the Great Cormorant are the only two similar species with overlapping range, distinguished by the white upper wing patch on the Chatham Islands Shag and the much darker overall appearance and larger size of the Great Cormorant. The Pitt Island Shag is the only shag found on the Chatham islands to have yellow legs and feet.
Sunda Coucal
Centropus nigrorufus
Uncommon and localized Javan endemic, restricted to coastal marshes, mangroves, estuaries, and adjacent scrubby and grassy growth. Black overall, with bright red eyes and patchy rufous-and-black wings. Also note huge, heavy bill with a hooked tip. Not as vocal as other coucals; infrequently gives a monotonous series of hoots which averages faster than that of Greater Coucal. Forages on the ground and in dense vegetation, only occasionally emerging into the open.
Grauer's Broadbill
Pseudocalyptomena graueri
A unique dumpy green flycatcher-like broadbill with a buffy crown, a black eye-stripe, and a powder-blue throat and vent. Juvenile duller. A scarce resident found singly and in pairs in the lower canopy and at middle levels of primary Albertine Rift Forest between 1760 and 2500 meters of elevation, preferring the edges of clearings. Highly localized, occurring in two isolated populations in Bwindi (Uganda) and Itombwe/Kahuzi (Democratic Republic of Congo), and inexplicably absent from ideal intervening habitat. May join flocks, but inconspicuous unless calling its soft high-pitched tinny “tsit-tsit,” repeated multiple times, and a rapid “tseet-tsit-tsit-sit-sit-it-it” in flight.
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