Rosy-faced Lovebird
Agapornis roseicollis
A small, short-tailed parrot with a soft pink face and dark eyes. Native to southwestern Africa, but feral populations occur in Arizona and in Hawaii; a common pet species, and escapees may occur anywhere. Wild birds are leaf green with brilliant blue rumps, but escaped domestic types may be mostly blue or yellow. Inhabits dry forests and river valleys; present in cities in both natural and introduced range. Call is a shrill, high whistle.
识别特征
The rosy-faced lovebird is a fairly small bird, 17–18 cm (6.7–7.1 in) long, with an average wing length of 106 mm (4.2 in) and tail length of 44–52 mm (1.7–2.0 in). Wild birds are mostly green with a blue rump. The face and throat are pink, darkest on the forehead and above the eye. The bill is horn-coloured, the iris is brown, and the legs and feet are grey. The pink of the A. r. roseicollis is lighter than that of the A. r. catumbella. Juvenile birds have a pale pink face and throat, a greenish fore crown and crown, and the beak has a brownish base.
分类信息
It was described by the French ornithologist Louis Pierre Vieillot in 1818. It was originally named Psittacus roseicollis but later moved to the genus Agapornis with the other lovebirds.<p>Two subspecies are recognised:
- 学名
- Agapornis roseicollis
- 命名信息
- (Vieillot, 1818)
- 目
- Psittaciformes
- 科
- Psittaculidae
- 属
- Agapornis
分布与栖息地
The rosy-faced lovebird inhabits dry, open country in southwest Africa. Its range extends from southwest Angola across most of Namibia to the lower Orange River valley in northwest South Africa. It lives up to 1,600 metres (5,200 ft) above sea level in broad-leaved woodland, semi-desert, and mountainous areas. It is dependent on the presence of water sources and gathers around pools to drink.<p>Escapes from captivity are frequent in many parts of the world and feral birds dwell in metropolitan Phoenix, Arizona, where they live in a variety of habitats, both urban and rural. Some dwell in cacti and others have been known to frequent feeders in decent-sized flocks. Temperatures in Arizona regularly exceed 40 °C (104 °F) and feral lovebirds have been observed perching in large numbers on air-conditioner vents in order to remain cool. Feral rosy-faced lovebird colonies can also be found on Maui and the Big Island in Hawaii. Although they have been observed in the wild in Puerto Rico, they are probably the result of escaped pets, and no reproduction has been recorded.<p>Populations have been reduced in some areas by trapping for the pet trade. However, numbers may have increased in other areas due to human creation of new water sources and the building of artificial structures which provide new nesting sites. Because of this, the species is classed as Least Concern by the International Union for Conservation of Nature (IUCN).
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
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分布
鸟叫声
其他鸟类
Pale-eyed Blackbird
Agelasticus xanthophthalmus
Medium-sized blackbird found locally in habitats with wet grass. Shiny black, with a white or light yellow eye and sharply pointed black bill. Giant Cowbird occasionally has a pale eye and may appear similar, but is much larger than Pale-eyed Blackbird; told apart from the similar Velvet-fronted Grackle by its pale eyes, longer, more pointed bill, and shorter tail. Found in wet grasslands and grassy margins of oxbow lakes, where it forages singly, in pairs, or in small groups.
Chinese Vivid Niltava
Niltava oatesi
Sturdy, migratory flycatcher of dense forests. Breeds in the mountains and winters at lower elevation. Male is blackish-blue above and rufous below with deep-blue crown, collar, shoulder and tail. Female is dull brown, with paler brown underparts and a buffy throat. Like other niltavas, forages primarily in middle levels, often with other species. Similar to Rufous-bellied and Fujian Niltavas, but male has a rufous notch in the dark throat and female lacks blue neck crescent and white throat strap. Song is a series of undulating, clear whistles, sometimes mixed with short trills.
Aceh Bulbul
Pycnonotus snouckaerti
Rare and declining endemic of Sumatra’s northwestern mountains. Large grayish-brown bulbul with a bright orange forehead patch, dark olive wings, and a weak crest that gives it a pointy-headed profile. Once regarded as a subspecies of the very similar Orange-spotted Bulbul, but note present species’ distribution and dark (not white) belly. Inhabits foothill and lower montane forests, where localized and largely restricted to clearings with a substantial understory. Calls are generally similar to those of Orange-spotted Bulbul, and include a bubbly chatter.
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