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Hal Opperman
Hal Opperman is the principal author of A Birder's Guide to Washington; co-author of Birds of Southwestern British Columbia, Birds of the Puget Sound Region, and Birds of the Willa...показать большеHal Opperman is the principal author of A Birder's Guide to Washington; co-author of Birds of Southwestern British Columbia, Birds of the Puget Sound Region, and Birds of the Willamette Valley Region; and past editor of the Washington Ornithological Society's journal, Washington Birds. He lives in Seattle, Washington.показать меньше