Townsend's Storm-Petrel
Hydrobates socorroensis
Endangered seabird found in the Pacific Ocean well off the coast of Mexico and southern California. It breeds in summer on small islets near Guadalupe Island, located 160 miles from Baja California, and disperses northward and southward at other times of the year. Plumage is dark gray with a notched tail and pale stripes on the upperwing; rump may be either dark or white. Flies erratically and often patters the ocean with its feet. Very similar to Leach’s Storm-Petrel, which also has white- and dark-rumped forms, but it is smaller and darker with more rounded wings and less contrasting wing stripe. Also very similar to Ainley's Storm-Petrel, but keep in mind that Ainley’s has not yet been recorded in US waters.
识别特征
Endangered seabird found in the Pacific Ocean well off the coast of Mexico and southern California. It breeds in summer on small islets near Guadalupe Island, located 160 miles from Baja California, and disperses northward and southward at other times of the year. Plumage is dark gray with a notched tail and pale stripes on the upperwing; rump may be either dark or white. Flies erratically and often patters the ocean with its feet. Very similar to Leach’s Storm-Petrel, which also has white- and dark-rumped forms, but it is smaller and darker with more rounded wings and less contrasting wing stripe. Also very similar to Ainley's Storm-Petrel, but keep in mind that Ainley’s has not yet been recorded in US waters.
分类信息
Genus: Hydrobates; Family: Hydrobatidae; Order: Procellariiformes.
- 学名
- Hydrobates socorroensis
- 命名信息
- (Townsend, CH, 1890)
- 目
- Procellariiformes
- 科
- Hydrobatidae
- 属
- Hydrobates
分布与栖息地
Breeding range: PO : summer breeder, is. Negro and Afuera, off Guadalupe I. (w of s Baja California, nw Mexico). Non-breeding range: to waters off s California and s Mexico.
- 繁殖区
- PO : summer breeder, is. Negro and Afuera, off Guadalupe I. (w of s Baja California, nw Mexico)
- 非繁殖区
- to waters off s California and s Mexico
- 迁徙
- Complete migrants
行为
Migration pattern: Complete migrants.
保护状况
Population trend: declining.
- 种群趋势
- declining
照片
分布
鸟叫声
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