French: Hirondelle bicolore German: Sumpfschwalbe Spanish: Golondrina bicolor
New York, USA
N & C North America from W & C Alaska and Canada (N Yukon, NW & S Mackenzie, N Saskatchewan and Manitoba E to NC Quebec, C Labrador and Newfoundland) S in USA to S California, N Oregon, E Nevada, N Arizona, N New Mexico, Texas (irregular), N Alabama, N Georgia and North Carolina (casual in NE Louisiana and Mississippi); winters mainly S USA coasts and West Indies S to Panama.
12–14 cm; 17–25·5 g. Male is glossy blue-green above, wings and tail blackish, tail shallowly forked; underparts white, underwing-coverts grey-brown.... read more
Large vocal repertoire: “dawn song” is a repetition of a few phrases sung around dawn... read more
Open areas, especially near water, such as lakes, marshes and ponds; requires trees with suitable... read more
Food and feeding
Mostly insects, also molluscs, spiders; some fruits. In samples taken throughout North America, diet consisted of 40% flies (Diptera), 14%... read more
Laying mainly early May to mid-Jun, earlier in S of range than in N, fledging mid-Jun to Jul; single-brooded. Socially monogamous, but 0... read more
Migratory. Large post-breeding flocks, sometimes hundreds of thousands in roosts. Normal winter... read more
Status and conservation
Not globally threatened (Least Concern). Total population estimated at c. 20,000,000 birds. Abundant in E Canada and NE USA (New England and Adirondack Mts). Since 1980,... read more
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