Juan Manuel Borrero / Illustration of Hirundinidae family: Common Sand Martin (Riparia riparia), Northen House-Martin (Delichon urbicum), Common Swift (Apus apus) and Barn Swallow (Hirundo rustica). Pencil and watercolor p...
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Konrad Wothe / Common House Martin (Delichon urbicum) collecting clay for nest building, Europe
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Konrad Wothe / Common House Martin (Delichon urbicum) collecting clay for nest building, Europe
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Tim Martin / Juvenile House / Common sparrow (Passer domesticus) begging from adult male, perched on sunflower. Isles of Scilly, UK. August
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Tim Martin / House / Common sparrow (Passer domesticus) female with bread in its beak. Isles of Scilly, Cornwall, UK. August
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Tim Martin / Male Common / House sparrow (Passer domesticus) feeding juvenile on roof. Isles of Scilly, UK. August
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Tim Martin / Male Common / House sparrow (Passer domesticus) perched on sunflower. Isles of Scilly, UK. August
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Tim Martin / Female Comon / House sparrow (Passer domesticus) feeding on sunflower, two juveniles waiting to be fed in background. Isles of Scilly, UK. August
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Tim Martin / Male House / Common sparrow (Passer domesticus) on grass. Isles of Scilly, Cornwall, UK. August
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Rolf Nussbaumer / Common House Martin (Delichon urbicum) feeding chicks nest, Oberaegeri, Switzerland. June 1993
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Duncan Usher / Common House Martin (Delichon urbicum) large group on cables, Europe
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Duncan Usher / Common House Martin (Delichon urbicum) pair collecting mud at waterhole to use in nest construction, Europe
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Mike Wilkes / Male Common (House) sparrow feeds young at nest made in old House martin's nest. England, UK
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Chris Shields / Illustration of Common / Northern House Martin (Delichon urbicum),Hirundinidae, in flight. Endemic to Europe and Africa.
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Chris Shields / Illustration of Common / Northern House Martin (Delichon urbicum),Hirundinidae, in flight. Endemic to Europe and Africa.
