Red-rumped swallow (Cecropis daurica) nest on a house. Red-rumped swallows build quarter-sphere nests with a tunnel entrance lined with mud collected

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Red-rumped swallow (Cecropis daurica) nest on a house. Red-rumped swallows build quarter-sphere nests with a tunnel entrance lined with mud collected in their beaks. Photographed in Bulgaria.

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Size: 5141px × 3410px
Photo credit: © BOB GIBBONS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, angiosperm, angiosperms, biological, biology, botanical, botany, calyptridium, cascade, flora, flower, flowering, flowers, mountains, nature, north, oregon, pink, plant, pussypaw, states, umbellatum, united, usa, wild, wildflowers