Stock Photo - Romania , Bertani, Swallows (Hirundo rustica) on the Wire, The swallows and martins are a group of passerine birds in the family Hirundinidae which are characterised by their adaptation to aerial feeding. Swallow is also used in Europe as a synonym for the Barn Swallow.They have adapted to hunting insects on the wing by developing a slender streamlined body, and long pointed wings. Like the unrelated swifts and nightjars, which hunt in a similar way, they have short bills, but a wide gape

Stock Photo: Romania , Bertani, Swallows (Hirundo rustica) on the Wire, The swallows and martins are a group of passerine birds in the family Hirundinidae which are.

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