What’s Killing Migratory Birds? A New Tracking System May Offer Clues.

This story was originally published by Undark and appears here as part of the Climate Desk collaboration. Twice a year, members of a subspecies of red knots—salmon-colored sandpipers—migrate thousands of miles between their wintering grounds in northern Mexico and breeding sites in the Arctic tundra, encountering myriad obstacles along the way. Thought to migrate during both day and night, brightly […]