Tamaulipas Pygmy-Owl
Glaucidium sanchezi
Very small owl of tropical forest in the foothills of northeast Mexico where it is endemic. Favors forest canopy and is rarely seen, but sometimes hunts low at edges; active in the daytime. Most often detected by its distinctive tooting call, given at any time of day but mainly early and late: 13 slow-paced hollow hoots, repeated after a pause. Ferruginous Pygmy-Owl favors more open habitats, is seen much more frequently, and has pale streaks (not spots) on the crown and a very different tooting song.
识别特征
The adult Tamaulipas pygmy owl has a length of between 13 and 16 cm (5.1 and 6.3 in) with a relatively long tail of between 5.1 and 5.7 cm (2.0 and 2.2 in). Their average weight is 53 g (1.9 oz), the male generally being lighter than the female. The male has a brownish facial disc flecked with white and short white eyebrows. The upper parts are olive-brown, with a greyer crown and fine white speckling at the front and sides of the crown. The main wing and tail feathers are barred in white. The underparts are whitish with some reddish-brown streaking and mottling. The legs are feathered, the bill is yellowish-brown and the eyes are yellow. The female is similar but has an overall more reddish-brown appearance.
分类信息
- 学名
- Glaucidium sanchezi
- 命名信息
- Lowery & Newman, RJ, 1949
- 目
- Strigiformes
- 科
- Strigidae
- 属
- Glaucidium
分布与栖息地
The Tamaulipas pygmy owl is endemic to Mexico where it is only found in the mountains of northeastern Mexico, in the northern part of the state of Hidalgo and the southeastern part of the state of San Luis Potosí. Its habitat is moist evergreen forest, montane forest and cloud forest at altitudes between about 900 and 2,100 m (3,000 and 6,900 ft).
- 迁徙
- Resident species
行为
This owl is partly diurnal and feeds on insects and small vertebrates such as lizards. Little is known of its breeding habits but it generally chooses a hole in a tree previously used by a woodpecker. A clutch of up to four white eggs is laid and the young are able to fly soon after they emerge from the nest.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Creamy-breasted Canastero
Asthenes dorbignyi
Local but often quite common in the Andes, favoring dry and rather open scrubby habitats, and also agricultural areas with hedges and taller trees. Large, bulky stick nests are often conspicuous in cacti and even in taller Eucalyptus trees. Often in pairs, foraging low to high in bushes and trees and running well on the ground with tail held cocked. Best identified by plain pale breast with variably contrasting rusty to buffy flanks and rump and a mostly dark tail. Plumage and voice vary regionally and multiple cryptic species likely involved.
Hen Harrier
Circus cyaneus
Medium-sized harrier, flies with wings held in a V-shape, low over open fields and marshes, listening for rodents lurking below. Distinctive foraging behavior and conspicuous white patch on rump in all plumages. Five long primary ‘finger tips’ prominent in flight. Females and immatures are warm brown with streaky breasts. Adult male has plain mid-gray wings with black wingtips and paler belly.
Rufous-crowned Antpitta
Pittasoma rufopileatum
Chunky, nearly tailless bird of lowland and foothill rainforest in northwestern Ecuador and western Colombia. Brown with rufous crown, orange or buffy throat, broad black stripe through face, and white spots on wings. Markings on underparts vary geographically, from strongly barred in southern part of its range to unbarred at the northern limit. Rare and seems to prefer very wet areas. Mostly terrestrial but may ascend to a low perch to sing. Vocalizations include a long series of evenly spaced whistles and a harsh rattle.
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