Swallow videos on the Internet Bird Collection; The evolution of nest construction in swallows (Hirundinidae) is associated with the decrease of clutch size paper in
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Learn how to identify Barn Swallow, its life history, cool facts, sounds and calls, and watch videos. Glistening cobalt blue above and tawny below, Barn Swallows dart
Learn how to identify Tree Swallow, its life history, cool facts, sounds and calls, and watch videos. Handsome aerialists with deep-blue iridescent backs and clean
Tree Swallow Tachycineta bicolor. Backyard Birding Home; Backyard Bird Identifier; Bird Features. What’s That Bird? Identify your backyard visitors in a flash!
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Barn Swallow. Hirundo rustica. Backyard Birding Home; Backyard Bird Identifier; A cup-shaped bowl made entirely of mud and the bird’s saliva; 3–7 eggs (May
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The barn swallow (Hirundo rustica) is the most widespread species of swallow in the world. It is a distinctive passerine bird with blue upperparts, a long, deeply