Hirundo rustica (barn swallow)
The second is an alarm call which they use to frighten crows, gulls, and other threats as they dive bomb their nemesis.
Douglas Von Gausig (recordist; copyright holder), Naturesongs.com

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To cite this page: Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2013. The Animal Diversity Web (online). Accessed at http://animaldiversity.org.
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