Beck's Petrel

Pseudobulweria becki

A mostly dark-brown petrel with a white underbody and a strongly hooded appearance. Very similar to the larger Tahiti Petrel, but has a smaller, thinner bill and more rounded wings. Erratic flight style is much more fluid and “flappy” than that of Tahiti Petrel, which prefers to soar endlessly on long thin wings. Similar to Phoenix Petrel, but lacks a pale throat and a pale bar on the leading edge of the underwing.

识别特征

It is dark brown above and on the head and throat. It is dark underneath the wings with a fairly distinct white wingbar. The belly and breast are white. It flies over open oceans with straight wings that are slightly bent back at the tips.

分类信息

学名
Pseudobulweria becki
命名信息
(Murphy, 1928)
Procellariiformes
Procellariidae
Pseudobulweria

分布与栖息地

繁殖区
PO : likely breeds montane s New Ireland (ne Bismarck Arch.)
非繁殖区
e Bismarck Arch., Buka to Temotu (Solomon Is.) and Vanuatu; also recorded Geelvink Bay and nc Moluccas
迁徙
Complete migrants

保护状况

种群趋势
declining

照片

分布

其他鸟类

Great Gray Shrike

Great Gray Shrike

Lanius excubitor

Thrush-sized bird; pale gray overall with black mask. In flight, watch for white patches in the wings. In areas of overlap, compare with other gray shrikes. Inhabits open habitats with scattered vegetation, from open forests to bogs and brushy meadows. Often seen on prominent perches, including power lines and short treetops, that offer perfect vantages for from which to spot prey. Carnivorous habits make shrikes unique among passerines, feeding on rodents and small birds. Vocalizations include bright short liquid trills and “gargling” phrases, often strung together into a repetitive song.

Yap White-eye

Yap White-eye

Zosterops oleagineus

Handsome and unique white-eye, endemic to the island of Yap, in Micronesia’s western Caroline Islands. Dark olive-brown in color, with a flashing bright white eye-ring and orange legs and feet. Inhabits a range of wooded habitats on Yap, from remaining native rainforest to mangroves and forest edge. Averages less common than the Plain White-eye with which it shares the island, and tends to forage in smaller groups, or in pairs. Gives a somewhat bulbul-like series of whistled notes: “wi’di-deer-di-deer.”

Royal Tern

Royal Tern

Thalasseus maximus

Large tern, found strictly in coastal areas. Feeds in open ocean and saltwater bays, where it flies high above the water looking for small fish. Rests on beaches, often in groups with other species. Separated from many terns by large size; only slightly smaller than Caspian. Look for the thinner orange bill (usually not deep red) and shaggier crest compared with Caspian. Also, forehead whiter than Caspian Tern in the nonbreeding season; this can show as early as midsummer.

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Beck's Petrel | 鸟镜