Photo 7767, (c) Jose Sousa, some rights reserved (CC BY-NC-ND)

Attribution © Jose Sousa some rights reserved Source Flickr Original http://www.flickr.com/photos/22956934@N00/1515352659 Associated taxa CC Bank Swallow (Riparia riparia) Info Photo (c) rupperrt78, some rights reserved (CC BY-NC) CC Sand Martins, Plain Martins, and Allies (Genus Riparia) Info Photo (c) Jose Sousa, some rights reserved (CC BY-NC-ND) Sizes small medium large original