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Sheri L Williamson

Sheri L. Williamson is one of North America's foremost experts on hummingbirds and cofounder of the Southeastern Arizona Bird Observatory. Her intimate knowledge of hummingbirds comes from more than a decade of intensive study, including hundreds of hours of field observation and the banding of several thousand individuals of 16 species. She leads birding and natural history tours and lectures on hummingbirds and other wildlife of the Southwest. Her articles have appeared in a variety of...See more