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Between 1940 and 1972, widespread use of DDT reduced the number of nesting Bald Eagle pairs in the United States to fewer than 500. The pesticide caused eggshells to become dangerously thin, severely limiting reproductive success. Protection under the Endangered Species Act in 1973 helped reverse this decline, and today bald eagles have made a remarkable recovery. They still face ongoing threats, however, including lead poisoning from spent ammunition, habitat loss, and collisions with vehicles and wind turbines. Along Canada’s west coast, Bald Eagles are year-round residents. Living in Vancouver, I frequently watch them soaring above my patio, often pursued by crows and gulls. Those inspiring encounters became the inspiration for this drawing of one effortlessly gliding through the clouds.
