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![]() Hirundo Crag martin Red-rumped Swallow Cecropis Dusky Crag Martin Delichon Eurasian Crag Martin Rock Martin Petrochelidon Passerida Sylvioidea Hirundinidae | Add to Reading List |
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![]() | Barn Swallows and Cliff Swallows Swallows are migratory songbirds that occur and breed in Washington from spring to fall. They are sparrow-sized birds with long, pointed wings and streamlined bodies developed for fast, aDocID: 8Bcu - View Document |
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![]() | © Biologiezentrum Linz/Austria; download unter www.biologiezentrum.at Linzer biol. Beitr.DocID: 3XWH - View Document |
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