North American bird populations are plummeting, especially in drylands, grasslands and the Arctic where they have historically been most abundant, new research has found.

Birds are rapidly vanishing from North America, with dramatic population losses in places that were once thought safe.

North American bird populations are shrinking most rapidly in the very areas where they are still most abundant, according to a new study leveraging citizen science data for nearly 500 bird species.

A 2019 study sounded the alarm on declining North American bird numbers ... Despite the troubling overall decline, the study suggests that most bird species still have small areas in their range where ...