Chestnut-collared Longspur
Calcarius ornatus
Sparrowlike ground-dweller; crouches low to the ground and walks with pattering footsteps. Breeding male shows beautiful chestnut nape, black-and-white head stripes, yellowish throat, and black belly. Females and nonbreeding birds are much more subtle. Tan overall with washed out face pattern, a slightly warmer nape, and indistinct streaks below. With a good view, look for shorter wingtips than other longspurs. In flight, note extensive white on edges of tail. Often found in flocks, sometimes mixed other longspurs. Breeds in grassy prairies, where males give a complex descending song. Winters in fields with short grass.
识别特征
These birds have a short conical bill, a streaked back and a white tail with a dark tip. In breeding plumage, the male has black underparts, a chestnut nape, a yellow throat and a black crown. Other birds have light brown underparts, a dark crown, brown wings and may have some chestnut on the nape.<p>Measurements:
分类信息
- 学名
- Calcarius ornatus
- 命名信息
- (Townsend, JK, 1837)
- 目
- Passeriformes
- 科
- Calcariidae
- 属
- Calcarius
分布与栖息地
This bird breeds in short and mixed grass prairies in central Canada and the north central United States. In winter, they migrate in flocks to prairies and open fields in the southern United States and Mexico. Like other prairie birds, they have disappeared from some areas because of habitat loss but are still fairly common.<p>Controlled burns may benefit this species as they feed on low-growing plants that are more easily spotted after a fire.
- 繁殖区
- NA : sc Canada and nc USA
- 非繁殖区
- to Mexico
- 迁徙
- Complete migrants
行为
These birds forage on the ground, gathering in flocks in winter. They mainly eat seeds, also eating insects in summer. Young birds are mainly fed insects.<p>The female lays 4 or 5 eggs in a grass cup nest in a shallow scrape on the ground. The male sings and flies up to defend his territory. Both parents feed the young birds.<p>The call is a two-syllabled chee dee.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Spotted Redshank
Tringa erythropus
Elegant wader with a long fine bill and long reddish legs (dark on breeding adults). Striking breeding plumage dark overall. Nonbreeding plumage is paler and grayer than smaller and chunkier Common Redshank. In flight often appears dark overall with narrow white oval up middle of back. Breeds in arctic bogs and swamps; migrants occur in varied wetland habitats. Usually seen as singles or small groups, though will sometimes congregate in large flocks, especially on wintering grounds. Feeds mainly by wading in fairly deep water, probing and picking with its bill, at times swimming.
Yungas Manakin
Chiroxiphia boliviana
Fairly large manakin of montane forest habitats. Males are black with a blue back and red cap; females are dull olive green. Both sexes have a dark brown eye. Found at higher elevations than similar Blue-backed Manakin. Favors the understory of mossy forest, including on outlying ridges. Listen for its loud whistled calls.
Barking Owl
Ninox connivens
Medium sized gray-brown owl with white underparts heavily streaked brown. Favors edge habitats and often roosts near creeks in woodlands. Feeds on small to medium sized mammals. Known for its diagnostic ‘woof-woof’ call which sounds like a dog barking.
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