lTree Swallow (Tachycineta bicolor) close-up, Hilton, NY, by Chris Gates

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We are an international community of biologists studying swallows in the genus Tachycineta from northern Canada to Argentina. Supported by the National Science Foundation, we are using standarized protocols to better understand the breeding biology of the Golondrinas de las Americas -- the swallows of the Americas -- and their aerial insect prey. Our network of biologists monitors the effects of weather and insect density on avian breeding at different latitudes across the Western Hemisphere and we are pursuing studies of geographic variation in many aspects of swallow biology.

This long-term, correlative monitoring has obvious merit for studies of:

  • global change
  • differences between tropical and temperate ecosystems
  • tropical-temperate life history difference in birds and insects

If you are interested in working with us or have questions about the Golondrinas de las Americas, please contact the project's founder, David Winkler, or Lori Sonken, project coordinator.