Vega Gull
Larus vegae
A large, sturdy gull of East Asia. Adults have a fairly pale gray back, pale eye, and dull pinkish legs. Takes four years for immatures to progress from mostly brown to fully white and gray adult plumage; intermediate plumages are often mottled and messy. Extremely variable plumage can make identification tricky. Occurs inland and along the coast, frequenting river mouths, harbors, beaches, lakes, and ponds. Often forms flocks with other gulls. Back color of adults generally a shade darker than that of American Herring Gull. Very similar to Mongolian Gull, and separation is tricky, but has a larger head and bill; adults also generally have pinker legs.
分类信息
- 学名
- Larus vegae
- 目
- Charadriiformes
- 科
- Laridae
- 属
- Larus
照片
分布
鸟叫声
其他鸟类
Western Tanager
Piranga ludoviciana
Breeding males are stunning bright yellow with a black back and red head. Females and immature males are duller, sometimes mostly grayish with just faint yellow on the face and undertail coverts. Always note two white wingbars and pale bill. Breeds mainly in coniferous or mixed forests at middle or high elevations. Winters as far south as Central America, where it can be found in any forested habitat. Often stays high in the canopy. Listen for male’s burry song in the spring and summer and short, rising rattle year-round.
Angola Cave-Chat
Xenocopsychus ansorgei
Long-tailed, black-and-white chat. Note the mostly white outer tail. Found in thick woodland on rocky hillsides, where it is elusive and skulky, except when sitting out in the open to sing. The song is a simple series of whistled notes. Unlike all similar birds in its range, completely lacks orange in its plumage.
Great Lizard-Cuckoo
Coccyzus merlini
An impressive long-tailed cuckoo of densely vegetated woodlands and tall scrub. Note the long straight bill and the bright orange-buff belly. Generally solitary and secretive, but also tame. Sometimes runs on the ground after prey. Flight often consists of long glides on rounded wings. Vocalizations include a loud, long, ratcheting “eh-eh-eh…” and a penetrating “puck-grawwwwwww.”
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