Blue-crowned Parakeet
Thectocercus acuticaudatus
Bright green bird with blue crown and face, distinct white eyering and long, pointed tail. Native to lowland dry forest and scrub in South America; introduced to urban areas in south Florida, California, and Honolulu, Hawaii. Often seen in small flocks; can travel large distances between roosts and feeding areas. Listen for high-pitched grating calls.
识别特征
The blue-crowned parakeet is a medium-sized bird measuring approximately 37 cm (14.5 in) in length and weighing between 140 and 190 g (4.9 and 6.7 oz).<p>Blue-crowns are born with red coloring around the head, but blue-crowns are predominantly green, with dull blue coloring on the forehead, crown, cheeks, and ears in the nominate, but less blue in other subspecies. It has a ring of white featherless skin around each eye, though this is bright orange-yellow in wild T. acuticaudata neumanni. The breast feathers may also be tinged with blue, though they are more commonly green to yellow-green. Closed wing coloring matches that of the body while extended wings show blue-brown, becoming chestnut on the outer flight feathers. The tail feathers are green on top, maroon to red-brown on the underside, iridescing to bright orange and scarlet under full-spectrum light. Legs are pink-brown with grey-brown claws. The upper mandible is horn-colored, tapering to a needle-sharp, grey-black tip. In the southern and western nominate and subspecies neumanni, the lower mandible is horn-colored in juveniles, fading to grey-black by the bird's second year. The remaining eastern, central and northern subspecies retain the horn-colored lower mandible throughout adulthood.
分类信息
While T. acuticaudatus is the only species in the monotypic genus Thectocercus, this species has five subspecies:<p>Previously, this species was part of the genus Aratinga, but that genus was split in four distinct genera once various phylogenetic studies showed that the genus, as traditionally defined, was polyphyletic.
- 学名
- Thectocercus acuticaudatus
- 命名信息
- (Vieillot, 1818)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Thectocercus
分布与栖息地
- 迁徙
- Nomadic movement
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Tibetan Partridge
Perdix hodgsoniae
An ornate small terrestrial bird of Tibetan highlands, usually dry hillsides and valleys with sparse shrub cover. Often seen hurrying along with a bobbing gait when surprised on a roadside or in pastures. Browish overall, with black-and-white face pattern and bright orange neck. Can be quite tame, especially in protected areas around monasteries, where often fed.
Blue-tailed Bee-eater
Merops philippinus
Elegant, slender bird of open country, frequently seen in flight or perched on exposed snags or telephone wires. Adult green overall, with blue tail, thin black mask, and rufous throat; bright rufous underwings visible in flight. Juvenile similar but paler, with tannish throat and shorter tail, lacking the adult's elongated central tail feathers. Flying bird has distinctive shape, with broad, sharply pointed wings, long tail, and long bill. Nests colonially in sandbanks. Voice a sweet, clipped “cheer-it,” sometimes given in series.
Brown Honeyeater
Lichmera indistincta
Smallish honeyeater with a curved black bill. Grayish overall, with yellowish panels in the wings and tail, and a dark smudge around the eye. Also note bright yellow speckle behind the eye if seen well. In areas of overlap, juvenile Brown Honeyeaters are regularly confused with Dusky Honeyeaters (which are a darker sooty-brown and lack the yellow wing panel). Social and noisy, moving in active flocks. Found in a wide variety of habitats, including mangroves, forests, parks/gardens, and arid inland areas. Very vocal with a wide variety of chattering calls.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。