The most distinguishing characteristic of a male yellow-headed blackbird is its bright yellow head and chest, hence its name. “It’s also bigger than a red-winged blackbird,” says Paige Anspach, ...

Just after dawn in Washington, D.C., Stephanie Haley is walking a familiar downtown route, scanning the sidewalk next to office buildings. There, huddled on the ground, is a motionless olive-green ...