Birds of PA

Barn Swallow 1
Hirundo rustica
American Barn Swallow 2
Hirundo rustica erythrogaster

Edited by Benjamin Koser, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Francisco Caloca, some rights reserved (CC BY-NC), uploaded by Francisco Caloca
  • 2. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow

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