Española Ground-Finch

Geospiza conirostris

A large and stout-billed Galápagos finch confined to the island of Española. Identification is straightforward, since the only other finches living on Española (Small Ground-Finch and Gray Warbler-Finch) have relatively tiny bills. Bill is pure black on breeding male and marked with pink or orange on female and nonbreeding male. Male’s plumage is mostly sooty-black; female is browner with pale streaks on the underparts. Common in arid areas near the coast. Often seen perched on rocks and bushes, or hopping around on the beach.

识别特征

The Española cactus finch is among the largest of the Darwin's finches, measuring 15 cm (5.9 in) in length. The male is black, with white-tipped undertail coverts. Female and immature birds range in color from dull gray to matte black, and frequently show white edges to the feathers of their underparts.

分类信息

The Española cactus finch is one of Darwin's finches, a group of closely related birds that evolved on the Galápagos Islands. The group is related to the Tiaris grassquits, which are found in South America and the Caribbean. An ancestral relative of those grassquits arrived on the Galápagos Islands some 2–3 million years ago, and the Española cactus finch is one of the species that evolved from that ancestor.<p>From a study done in 2015, the Española cactus finch (G. conirostris) of Española was found to be a sister to the large ground finch, not to the Genovesa cactus finch. The International Ornithologists' Union has changed the taxonomy based on the study. Other taxonomic authorities have kept the large cactus finch and the Genovesa cactus finch conspecific.

学名
Geospiza conirostris
命名信息
Ridgway, 1890
Passeriformes
Thraupidae
Geospiza

分布与栖息地

迁徙
Resident species

行为

Migration pattern: Resident species.

保护状况

Population trend: stable.

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Mindoro Imperial-Pigeon

Mindoro Imperial-Pigeon

Ducula mindorensis

A large pigeon of montane forest canopy on Mindoro with a metallic green wing and rump, a bronzy back, a buffy throat, and gray underparts, sides of the neck, and crown. Note the red eye-ring and the broad gray central band in the black tail. Somewhat similar to Pink-bellied Imperial-Pigeon, but Mindoro lacks the dark neck and chest. Also similar to Green Imperial-Pigeon, but Mindoro is usually found higher up and has a dark back and a red eye-ring. Song is two deep, booming hoots.

Thrush-like Wren

Thrush-like Wren

Campylorhynchus turdinus

Very large wren that tends to be common throughout its wide range. Overall brownish plumage is geographically variable - northern populations have dense dark brown spots on paler underparts, while southern populations are more uniformly medium-brown above and below, with a few spots on the lower belly and vent. Mostly found in the canopy of humid forests, including disturbed areas; southern populations also occur in tangles and edges of semi-humid woodland. Distinctive song of loud, mellow, chortling notes is a regular sound anywhere this species occurs.

Pink-bellied Imperial-Pigeon

Pink-bellied Imperial-Pigeon

Ducula poliocephala

A large pigeon of foothill and lower montane forest canopy with a white head, a dark bluish-gray chest and upper back, green wings, a whitish belly with a pink tinge, and rufous under the base of the tail. Note the large red eye-ring. Somewhat similar to Mindoro Imperial-Pigeon, but Pink-bellied has a dark neck and chest. Song is a deep, booming, upslurred “doo-dup! doo-dup!”which can be heard from a distance.

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