Over a million records telling the tale of nearly a century of North American bird migrations have been rescued from obscurity and are being transcribed by an international network of more than 2,000 volunteers, making the records available for the first time online for use by researchers and the public.
The records, which span the years from 1880 to 1970, provide information on what areas of the country birds were spotted, and when they arrived or departed in spring and autumn. The information is of use identifying how birds’ ranges and migration patterns have changed over time.
The one-millionth transcription was that of a house wren seen in Tierra Amarilla, New Mexico, on September 11, 1904 and it joined all the other records now part of the United States Geological Survey North American Bird Phenology Program database.
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