By Scott Merzbach
Life-threatening dangers are posed any time a migratory bird approaches a building, unaware that it could be on course to strike a window. “They just see a reflection of vegetation or of the sky,” says Randy Dettmers, migratory bird biologist at U.S. Fish & Wildlife Service in Hadley, who estimates that 20 to 30 birds annually can be fatally injured at any one- or two-story building.
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