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Mandatory bird-friendly design on Portland’s horizon (access required)

Every year in Portland, according to estimates by the Audubon Society of Portland, hundreds of birds die after flying into the city’s many glass curtain-walled buildings. It’s difficult to measure the precise number of bird deaths in the city, said Mary Coolidge, Portland BirdSafe Campaign coordinator for the Audubon Society. But nationwide, she added, at least ...

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