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Sphyrapicus thyroideus (Williamson's Sapsucker) is a species of birds in the family woodpeckers. They are listed as endangered by COSEWIC. They are found in The Neotropics and The Nearctic. They rely on flight to move around.

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EOL has data for 20 attributes, including:

Known occurrences, collected specimens and observations of Williamson's Sapsucker. View this species on GBIF