Baudo Guan
Penelope ortoni
Medium-sized turkeylike bird restricted to very wet rainforest in lowlands and foothills of western Colombia and northwestern Ecuador. It is dark brown with white streaks on the underparts and a red dewlap. Similar to the more common Crested Guan, but is smaller, browner (lacking chestnut on the belly and tail), and shows little or no crest. Baudo Guan is usually found in small groups high in the trees, and is very sensitive to habitat alteration; it is rarely encountered away from remote, relatively undisturbed areas.
识别特征
Structurally typical for a guan, the bird is about 65 cm (26 in) tall and the body is mostly dark brown. On the breast and neck there are regular, small white patches. Around the neck and head the brown is slightly darker and tending to greyish-brown, making the patching more visible. The head is plain, a feature that distinguishes this species from all other species of Guan living in that region of South America: all other guans of the same genus have pale markings on the head. Both the legs and the dewlap are red, but the dewlap is brighter and more visible than the legs.<p>Territorial calls are made around dawn, a far-carrying guttural bawling waou. The birds warn each other of the approach of human with low, soft, and prolonged rising whistles. The alarm call of konh-konh-konh-konh, is repeated several time, but is rarely heard. This alarm call is also shared by other Penelope species.
分类信息
Its closest living relatives are the Band-tailed Guan (Penelope argyrotis), Cauca Guan (Penelope perspicax), Dusky-legged Guan (Penelope obscura), White-crested Guan (Penelope pileata) and the White-browed Guan (Penelope jacucaca). All of these species can also be found in South America, ranging between Columbia and Brazil.It was previously considered a subspecies of the Andean Guan, but discovery of overlapping populations in western Colombia and southwest Ecuador with no evidence for introgression has led to specific treatment more recently.The scientific name commemorates the United States naturalist James Orton[citation needed].
- 学名
- Penelope ortoni
- 命名信息
- Salvin, 1874
- 目
- Galliformes
- 科
- Cracidae
- 属
- Penelope
分布与栖息地
Found in Colombia and in Ecuador, on the lower slopes and at the base of the west Andean foothills. There are no confirmed recent records of its presence anywhere south of Pichincha in Ecuador. Its living range and population size has certainly decreased significantly recently. In 2002 the population at one site in Ecuador was estimated to be between 2500 and 7500 adult individuals, with extrapolations based on widespread transects between 1997 and 2006 leading to an extrapolated global population of 7000-21000 mature individuals.
- 迁徙
- Resident species
保护状况
In Ecuador the species is protected by law[citation needed].Many areas inhabited by the species are poorly known so a first priority for conservation has been implementing population monitoring programs and surveying areas of its habitat. This allows the identification of regions which are poorly protected at the moment and ma help extend protected areas in Nariño and Esmeraldas.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Atlas Wheatear
Oenanthe seebohmi
Small thrush-like bird with distinctive black-and-white tail pattern that is striking in flight. Breeding male has a black face, throat and wing, gray back and crown, and white underparts. Breeding female is duller, with a brownish crown and back, and usually a speckled blackish face and throat. Nonbreeding and immature birds are duller overall, though males retain their distinctive black throat. Breeds in the Atlas Mountains of northwest Africa, in areas of bare rock and short grass. Migrates south into the Sahel, where it spends the non-breeding season in a variety of open habitats such as grasslands and barren rocky plains. Tends to stay on the ground or on low perches. Jumbled-sounding song is quite variable, often including whistles, trills, and mimicry. Similar in appearance to Northern Wheatear, though male Atlas Wheatear is usually separated by its black throat. Separating females during migration and on the wintering grounds is usually difficult. Female Atlas Wheatear has a black “wingpit” and front part of the underwing, but this is hard to see in the field.
Black-necked Aracari
Pteroglossus aracari
Multicolored aracari with a black head, an olive-green back, and a bicolored bill: pale above and black below. Note the red band across its yellow underparts and its red rump. Commonly encountered in a variety of different forested habitats, where it typically gathers in small noisy groups, occasionally with other aracari and toucan species at fruiting trees.
Ashy Minivet
Pericrocotus divaricatus
Slender, long-tailed gray songbird, usually seen in small to medium-sized flocks. Male has a distinct black-and-white head pattern, of which the female has a paler gray version. Black-and-white banding on underwings striking in flight. Similar to Swinhoe's and Ryukyu Minivets but larger and whiter-chested than the former, lighter gray than the latter. Inhabits lowland and foothill forests, where it frequents the upper levels of trees. Voice a tinkling insect-like trill, often given in flight.
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