識別
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Long-winged raptor with narrow, pointed wings that help it maneuver to catch insects in flight. Gray overall with whitish head, white secondaries on upperside of wing, and black tail. Graceful in flight with fluid wingbeats and long glides. Prefers riparian woodlands; occasionally occurs close to humans in suburban areas. Builds a stick nest in the top of a tree. Winters in South America.
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