Bay-headed Tanager

Tangara gyrola

Stunning tanager: mostly green with reddish head. Some populations have electric blue underparts, others entirely green. Similar to Rufous-winged Tanager but always has green wings. Found in pairs or small flocks in forest and edges, often in mixed feeding flocks from midstory to the canopy. Feeds on fruit.

识别特征

Adult bay-headed tanagers are 14 cm long and weigh 19.5 g. The nominate race T. g. gyrola is mainly green apart from a chestnut head, a blue or green belly, and a thin gold collar on the hind neck. Sexes are similar, but immatures are duller with chestnut-flecked green heads. There is considerable plumage variation between the various subspecies, and T. g.viridissima of northeast Venezuela and Trinidad has green underparts concolorous with the rest of the body plumage.<p>The bay-headed tanager's song is a slow seee, seee, seee, tsou, tsooy.

分类信息

The bay-headed tanager was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his Systema Naturae under the binomial name Fringilla gyrola. The specific epithet is a diminutive of the Latin gyrus meaning "ring". Linnaeus based his own description on the "red-headed green-finch" that had been described and illustrated by the English naturalist George Edwards in 1743 in his A Natural History of Uncommon Birds. The type locality is Suriname. The bay-headed tanager is now placed in the genus Tangara that was introduced by the French zoologist Mathurin Jacques Brisson in 1760.<p>Nine subspecies are recognised:

学名
Tangara gyrola
命名信息
(Linnaeus, 1758)
Passeriformes
Thraupidae
Tangara

分布与栖息地

It occurs in forests, particularly in wetter areas. The bulky cup nest is built in a tree and the normal clutch is two brown-blotched white eggs. The female incubates the eggs for 13–14 days to hatching, with another 15–16 days before the chicks fledge.

迁徙
Resident species

行为

Migration pattern: Resident species.

保护状况

Population trend: declining.

种群趋势
declining

照片

分布

鸟叫声

其他鸟类

Long-billed Pipit

Long-billed Pipit

Anthus similis

A large, slender pipit with considerable variation across its range. African and South Asian birds average browner, warmer-colored, and more heavily streaked on the breast than the grayer-toned Middle Eastern subspecies. All subspecies possess a pale eyebrow, a long tail, and a relatively long bill. As with many other pipits, can be frustratingly difficult to identify in the field; habitat and voice are important clues. Prefers dry, open areas with clumps of vegetation and scattered rocks and boulders, typically on slopes. Calls include squeaky sparrow-like chirps and sweet two-noted whistles. Song doesn’t quite sound like a song: a sequence of plaintive whistles, two-noted chirps, and other call-like vocalizations strung together with pauses in between.

Greater Ani

Greater Ani

Crotophaga major

Anis are bizarre black cuckoos with long floppy tails and unique, very deep and broad-sided bills. Greater is the largest ani, distinctive with its staring yellow eye and glossy blue, green, and purple sheen on the wings and tail. Always associated with water; especially apt to be found low in the forest edge around slow-moving rivers and lakes. Seen in family groups. Widespread in lowlands from Panama to Argentina.

Writhe-billed Hornbill

Writhe-billed Hornbill

Rhabdotorrhinus waldeni

A large rare bird of lowland and foothill forest on Panay and Negros, although almost extinct on the latter. Mostly black with a cream-colored tail with black terminal band, an orange casque, and a wrinkled lower bill. Male has a rufous head, a yellow pouch, and yellow around the eye. Female has a black neck and head, a smaller bill and casque, and blue and yellow around the eye and on the chin. The only other hornbill in range is Visayan, but Writhe-billed is larger, with a pale bill. Voice includes a three-noted throaty chuckle.

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