Tree swallows nest across the northern half of the U.S. and because they nest in artificial nest boxes can be attracted to specific areas of interest. Tree swallows are very numerous so they are not as difficult to find and study as other avian species.
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Swallows will nest in more diverse aquatic habitats within their breeding range than most other avian species. |
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marshes
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lakes and ponds
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rivers and streams
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- including highly industrial and urban locations where other species are often rare.
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While much better looking “ . . . tree swallows deserve equal standing beside fruit flies, nematodes, and mice as one of the classical model organisms in biology.”
(J.Jones 2003 Auk 120:591-599).
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