Least Auklet

Aethia pusilla

An abundant tiny auklet, only slightly larger than a sparrow. Occurs in large colonies around rocky shores during summer, and in smaller flocks further from the coast during winter. Summer plumage appears messy with numerous gray spots around the belly. Winter plumage is more contrastingly marked with flashing white belly and shoulders. Gives frequent, consistent squawks and squeaks at colonies. Readily separable from other auklets due to its whiter plumage and smaller size.

分类信息

学名
Aethia pusilla
命名信息
(Pallas, 1811)
Charadriiformes
Alcidae
Aethia

分布与栖息地

繁殖区
PAL, NA : nw to ne North Pacific coasts: patchily from e Chukotka, ne Kamchatka, Sea of Okhotsk, Kuril and Commander is. (e Russia); Bering Sea is. and Aleutian Is.
非繁殖区
pelagic in North Pacific, to n Sea of Japan and w British Columbia (sw Canada)
迁徙
Resident species

保护状况

Least auklets are vulnerable to oil spills and introduced species. The introduction of Arctic foxes to many of the Aleutian Islands caused the species to be wiped out on many of those islands, and rats are also a problem on many islands. However, at present they are still a very common species, and are not considered threatened by the IUCN.

种群趋势
declining

照片

分布

鸟叫声

其他鸟类

Long-billed Crow

Long-billed Crow

Corvus validus

A distinctive crow with a strikingly long bill, noticeable even in flight. Adults have purple-glossed blackish plumage and a prominent pale eye. Juveniles are dark-eyed and lack gloss. Occurs in the canopy of any areas with trees, where it is typically seen in small, active, vociferous groups. Restricted to the north Moluccas. Noticeably longer-billed than local Torresian Crows. Gives high-pitched “krak-krak-krak” calls repeatedly and often.

Christmas Shearwater

Christmas Shearwater

Puffinus nativitatis

A medium-sized shearwater with uniformly dark brown plumage and no contrasting markings. Flies more steadily than most shearwaters and usually flies low over the water. Large numbers nest on most of the Northwestern Hawaiian Islands. A few pairs nest on Moku Manu Islet off the eastern coast of Oahu. Often seen from boats in the Northwestern Hawaiian Islands, but rarely on the main islands and rarely from shore. The voice, usually heard only at breeding colonies, is a low moan.

Okinawa Robin

Okinawa Robin

Larvivora namiyei

Endemic resident of shady subtropical broadleaf forest understorey on the main island of Okinawa. Forages on the ground and often seen at the forest edge. Rufous-orange upperparts with grayish-white belly. Male has a black face and chest. Similar to the migratory Ryukyu Robin but male lacks the blackish flank patches and black forehead of that species. Female lacks black spotting on the chest of female Ryukyu Robin. Song is an up-and-down whistled melody. Call is a dry rattle, accompanied by wing and tail flicks.

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