When I was a kid, my grandmother used to play “hide the thimble” with my sisters and me. A variant of hide and seek, she’d hide a thimble or other small object in plain sight and we’d try to find it. The thrill of discovery fueled many rounds of play, until my grandmother’s hiding places (and likely her patience) were exhausted. Lately, I’m playing a similar game with birds. They hide their nests—often in plain sight— in ways that defy detection. Camouflaged eggs and nests and stealth behavior are critical to their… Read More