L 12-13cm. Breeds colonially in vertical sandy or earth banks, e.g. in gravel-pits and river banks, where nest is excavated (often a good metre horizontally into the earth). Rather tied to water, often seen in numbers hunting insects in low flight over lakes and rivers. Summer visitor (end March - begin October), winters in tropical W Africa. Prior to and during migration roosts commonly in large reed beds. Thie Picture is made from a scan of a Color Slide Location, Laon, France in 1981. Nature | Animal Wildlife | Horizontal | Outdoors | Europe

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Nature Animal Wildlife Horizontal Outdoors Europe Animal Behavior France Bird's Nest Green Color Swallow - Bird Tree Sky Season Natural Condition Springtime Sand Woodland Hole Sunlight 1981 Quarry Mining - Natural Resources Beauty In Nature Colony - Group of Animals No People Photography Flat Bed Scanner Animal Nest Laon Generic - Description Layered Sand Martin Songbird