(Video: Luis Velarde/The Washington Post, Photo: Jay McGowan, Macaulay Library at Cornell Lab of Ornithology/The Washington Post)
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Health and Science

North American bird population dropped by nearly 30 percent in last 50 years

September 19, 2019 | 5:53 PM GMT
The continent has lost nearly 3 billion birds representing hundreds of species over the past five decades, according to a study from top ornithologists and government agencies. Peter Marra, director of the Georgetown Environment Initiative, explains this staggering loss.