A Widespread Pesticide Causes Weight Loss and Delayed Migration in Songbirds

A Widespread Pesticide Causes Weight Loss and Delayed Migration in Songbirds

With winter approaching, White-crowned Sparrows are migrating south from North America’s boreal forest to central and southern United States and Mexico, sometimes flying hundreds of miles in one night. The weeks-long trek is already a major endeavor for the one-ounce songbirds, and pesticides may be making the journey even more perilous, a new study shows. […]

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