Peg-billed Finch
Acanthidops bairdi
Dull medium-gray finch with oddly long pointed bill, usually with pinkish or yellowish lower mandible. Female browner than male, with brown wingbars, but bill shape still very distinctive. Found at high elevations, usually above 1500m, in brushy areas or scrubby forest. Almost always found around seeding bamboo.
识别特征
The peg-billed finch is a long-tailed species, 13.5 cm long and weighing 16 g. It has a distinctive long upturned bill with a black upper mandible and yellow lower mandible. The adult male is slate grey, becoming paler on the belly. The female is olive-brown above, becoming paler below and with a grey tinge to the head and upper back. She has bright cinnamon wing bars and buff supercilia. Young birds are similar to the female, but have paler plumage and weaker wing bars.<p>It has a dry pzeek call, and the male's song consists of high whistled notes ending with a buzz, chee shee shee shee paah.
分类信息
The peg-billed finch was formally described in 1882 by the American ornithologist Robert Ridgway from a specimen collected near the Irazú Volcano in Costa Rica. To accommodate the new species Ridgway introduced the genus Acanthidops and coined the binomial name Acanthidops bairdi. The genus name combines the Ancient Greek akanthis meaning "spiky" with ōps meaning "face". The specific epithet honours the American naturalist Spencer Fullerton Baird. No subspecies are recognised.
- 学名
- Acanthidops bairdi
- 命名信息
- Ridgway, 1882
- 目
- Passeriformes
- 科
- Thraupidae
- 属
- Acanthidops
分布与栖息地
This is an uncommon bird at the edges and clearings of mountain forests, and in scrubby second growth, bamboo clumps, and bushy pastures from 1500 m altitude to the timberline. In the wet season it can descend to 1200 m altitude. Its numbers have reported to be high when the bamboo is flowering on favoured sites such as Cerro de la Muerte.
- 迁徙
- Resident species
行为
The finch is seen singly, in pairs, family groups or in mixed-species feeding flocks with other small birds such as warblers.<p>The nest, built by the female, is a cup of plant material into which she lays typically four eggs. The female alone incubates for 12–14 days to hatching.<p>It feeds on insects and spiders, grass and bamboo seeds. It will also squeeze nectar from flowers and juice from berries.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Camiguin Bulbul
Hypsipetes catarmanensis
A fairly large bulbul of forest and forest edge on Camiguin, where it is unmistakable. Dark olive-brown with a pale bill. Forages actively, often in large, vocal flocks. Song consists of a descending series of medium-pitched notes, jumping back to a higher note at the end. Also gives harsh grating calls and nasal screeches.
Black-throated Huet-huet
Pteroptochos tarnii
Fairly common but elusive; heard far more often than seen. Favors native temperate forest and adjacent shrubbery, especially bamboo. Feeds on the ground by scratching with its big feet in leaf litter, and runs very quickly and stealthily. Agitated birds can call loudly from middle level perches, cocking their tail. Nests in burrows, but can nest high up in tree hollows. Plumage distinctive, with pale eyering, dark slaty throat and breast, and rusty belly. No range overlap with Chestnut-throated Huet-huet.
Snowy Owl
Bubo scandiacus
Otherworldly beautiful large owl. White with a variable amount of black markings; old males are the whitest, while immature females have the densest dark patterning. Breeds on the Arctic tundra and winters in northern Eurasia and North America, where it favors expansive open habitats. Often encountered on lakeshores and in coastal areas with fields, marshes, piers, and sand dunes. Irruptive, moving considerably south of the usual wintering range some years.
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