NestWatch is a nest-monitoring project developed by the Cornell Lab of Ornithology in collaboration with the Smithsonian Migratory Bird Center, and funded by the National Science Foundation. Global environmental monitoring must include monitoring of biological organisms if we wish to understand the causes of and solutions for species declines. As a result, the need for large, continent-wide databases tracking survival and reproductive success of a wide range of species is increasing.

NestWatch teaches people about bird breeding biology and engages them in collecting and submitting nest records. Such records include information about nest site location, habitat, species, and number of eggs, young, and fledglings. Citizen scientists submit their nest records to our online database where their observations are compiled with those of other participants in a continentwide effort to better understand and manage the impacts of environmental change on bird populations.

Once fully populated, the database will house nearly 400,000 stored nest records spanning more than 40 years and 500 species.