Mangrove Finch

Camarhynchus heliobates

A critically endangered Galápagos finch and one of the world’s rarest birds. Currently known only from mangroves at a few sites (with restricted access) on Isabela. Formerly found on Fernandina, but there are no recent substantiated records there. Both sexes typically have brown upperparts, whitish underparts with tan streaking, and a faint eyebrow. Some older males may have a faint, dark hood. Bill is relatively long, with a curved upper edge and mostly straight lower edge. Male’s bill is black when breeding and slightly paler at other times. Female’s bill is orange. Similar to Woodpecker Finch, but that species has a longer bill and less prominent streaking.

识别特征

The mangrove finch (Camarhynchus heliobates) is a species of bird in the Darwin's finch group of the tanager family Thraupidae. It is endemic to the Galápagos Islands. It was found on the islands of Fernandina and Isabela, but recent surveys have failed to record the species on Fernandina. It has been classified as critically endangered by BirdLife International, with an estimated population of 20–40 mature individuals in 2021, located in two large mangroves on Isabela. A study has shown that the two small populations remaining on Isabela Island have begun undergoing speciation and that one or both populations will eventually become extinct due to a lack of interbreeding.

分类信息

Genus: Camarhynchus; Family: Thraupidae; Order: Passeriformes.

学名
Camarhynchus heliobates
命名信息
(Snodgrass & Heller, 1901)
Passeriformes
Thraupidae
Camarhynchus

分布与栖息地

As its name suggests, the mangrove finch lives in the mangroves of the Galápagos Islands. The mangrove finch feeds upon the various insects, larvae, spiders, and vegetable matter found in the mangroves. It closely resembles the far commoner woodpecker finch, but is not known to use tools.

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

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Striking and essentially unmistakable, with elegant shape, boldly pied plumage, long bluish-gray legs, and long, slender, upcurved bill. Curve is stronger on female. Usually breeds in small colonies; nesting birds call noisily. Nonbreeding flocks locally number in hundreds. Feeds while wading or swimming, sweeping its bill side to side. Most common in coastal wetlands and brackish lagoons and estuaries, but will also appear inland, particularly on or near large lakes.

Great Spinetail

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