Karoo Long-billed Lark
Certhilauda subcoronata
A large, slender lark with a long, thin decurved bill and long legs. Features can be variable, but generally the species has rufous upperparts, grayish coloration on the back of the neck, and a lightly streaked chest. As the similar-looking long-billed larks have separate ranges, location is a key factor in identification. This species strides purposefully through dry open shrubland, running quickly before pausing to dig in soil or pick at a shrub for invertebrate prey, seeds, or fruit. In a characteristic display the male flies low to the ground before flying directly up 10 to 15 meters, and then closing its wings and plummeting toward the ground while typically emitting a two-note “hit-seeeoooouuu” whistle, the second note descending. This call and similar ones can also be given from the ground. Most larks in the same range are smaller and more compact, with smaller bills and shorter legs.
识别特征
The Karoo long-billed lark (Certhilauda subcoronata) or Karoo longbill is a species of lark in the family Alaudidae. It is found in southern Africa in its natural habitat of subtropical or tropical dry shrubland.
分类信息
Genus: Certhilauda; Family: Alaudidae; Order: Passeriformes.
- 学名
- Certhilauda subcoronata
- 目
- Passeriformes
- 科
- Alaudidae
- 属
- Certhilauda
照片
分布
鸟叫声
其他鸟类
Lazuli Bunting
Passerina amoena
Breeding males are unmistakable: bright cerulean above with bold white wingbars, white belly, and orange breast. Females are plain buffy brown with paler wingbars and slightly brighter orangey breast. Breeds on shrubby hillsides and other semiopen habitats in western North America. Males often sing from a high exposed perch. Winters mainly in Mexico, where it frequently gathers in flocks in weedy fields. Females can be very difficult to distinguish from Indigo Bunting, although their range doesn't overlap much. Lazuli never shows streaks below like female Indigo Bunting often does; also note bolder wingbars, brighter breast, and less contrasting pale throat.
Streak-capped Antwren
Terenura maculata
Tiny hyperactive antwren of the canopy in humid forest and second growth, where it often follows mixed-species flocks. Males are heavily streaked on the head and flanks with a rufous back, dark wings with pale yellowish underparts below. Females are similar, but are paler overall with a buffy throat and buffier streaking on the head. The song is a dry rattle.
Ruff
Calidris pugnax
A bizarre and unique shorebird. Medium-sized with fairly short, slightly drooped bill. Leg color varies from dull greenish to bright orange; bill can be entirely dark or mostly orange. Plumage highly variable, especially breeding males, which have fancy neck ruffs that can be black, white, buffy, reddish-brown, or any combination thereof. Females and nonbreeding birds can be confusing, usually plain grayish-brown overall, sometimes with blotchy markings on the neck and belly. Juveniles are bright buffy with neat scaly patterning on the upperparts. Flight often rather lazy, with deep floppy wingbeats; note white underwings, white sides to rump, and feet projecting well past tail. Males are much larger than females. Breeds in bogs and wet grassy meadows across northern Eurasia; winters mainly in Africa but also across India and Southeast Asia. Migrants occur in almost any wetland habitat, from reservoirs and fields to coastal mudflats. Feeds by probing and picking, often while in shallow water. Rare but regular vagrant to North America, usually single birds found among flocks of yellowlegs.
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