Gray-headed Lovebird
Agapornis canus
Dinky, short-tailed green parrot. Males have a gray head, while females are plain green. Found most commonly in dry forest at low elevation in the north and west of Madagascar. Occurs much less commonly in the east and center, and at higher elevations. Uses open forest, scrub, plantations, and other fairly open habitats. Call is a zesty “vhit,” often given in flight.
识别特征
The grey-headed lovebird is one of the smallest species of the lovebird genus, being 13 cm (5 inches) long and weighing about 30–36 grams. Its beak and feet are pale grey. The species is sexually dimorphic: the adult female is entirely green, with a dark green back and wings, a bright green rump, and a paler green chest; the adult male are similarly colored, except that their entire head and upper chest are a pale grey.
分类信息
In 1760 the French zoologist Mathurin Jacques Brisson included a description and an illustration of the grey-headed lovebird in his Ornithologie based on a specimen collected in Madagascar. He used the French name La petite perruche de Madagasgar and the Latin Psittacula Madagascariensis. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. The lovebird was subsequently described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1779 and the English ornithologist John Latham in 1781, but neither author included a binomial name. When in 1788 the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's Systema Naturae, he included the grey-headed lovebird. He placed it with all the other parrots in the genus Psittacus, coined the binomial name Psittacus canus and cited the earlier publications. The grey-headed lovebird is now placed with seven other lovebirds in the genus Agapornis that was introduced by the English naturalist Prideaux John Selby in 1836. The genus name combines the Ancient Greek αγάπη agape meaning "love" and όρνις ornis meaning "bird". The specific epithet canus is the Latin word for "grey".<p>Two subspecies are recognised:
- 学名
- Agapornis canus
- 命名信息
- (Gmelin, JF, 1788)
- 目
- Psittaciformes
- 科
- Psittaculidae
- 属
- Agapornis
分布与栖息地
- 迁徙
- Resident species
行为
Grey-headed lovebirds are strong fliers, and when open, their wings seem larger in relation to their bodies than those of the peach-faced lovebird. They can develop good speed quite quickly and effortlessly, and turn smoothly, though they are not as nimble in the air as the peach-faced lovebirds.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Blue-fronted Fig-Parrot
Nannopsittacus gulielmitertii
A small, short-tailed parrot of lowland forest, forest edge, and lush gardens. Mostly found at low elevations, and sometimes up into the hills. Green body with dark blue in the wing, black forecrown and cheek, and a pale line separating the cheek, crown and bill. Males have an orange breast, while females have orange behind the dark cheek patch. Usually found in small groups. Most similar to Double-eyed Fig-Parrot, but Blue-fronted has blackish instead of red forecrown and cheek, and an orange breast. Calls, a sharp, high-pitched “tsik!” or excited twittering which often betrays their present in a tree.
Blackish Oystercatcher
Haematopus ater
Distinctive large chunky shorebird of rocky coasts, adjacent sandy beaches and river mouths. The only all-dark oystercatcher in South America, readily identified by wholly dark plumage, long orange-red bill, thick pinkish legs. Found as singles and pairs, less often small flocks (mainly when roosting), and associates readily with Magellanic and especially American Oystercatchers. Loud piping whistles sound similar to American Oystercatcher.
Cameroon Indigobird
Vidua camerunensis
A nest parasite that lays its eggs in the nests of African and Black-bellied Firefinches and Brown and Dybowski's Twinspots. Breeding males are glossy black with blue iridescence and a pale brownish panel in the wings. Females and non-breeding males are streaky and brown on the back and pale below, with a bold facial pattern. The bill is whitish and the legs very pale purplish. Found locally in lush woodland, savanna, and cultivated areas. Given current knowledge, can only be confidently identified by mimicked vocalizations. Each male parasitizes only one of the four host species and imitates its vocalizations, often mixing them into a scratchy jumble of high-pitched notes.
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