Florida Sandhill Cranes performing their best dance moves for photographer, Carol Groenen.

Rising from sandbars on the Platte River with clarion calls, the sandhill crane (Grus canadensis) feels the urgency of spring migration. Elegant, noble, and spi

Graced with illustrations by the author, Crane Music introduces the two North American crane species. The sandhill, most often seen, is within easy reach of bir

Renowned for their elaborate mating displays, sandhill cranes also use body language to announce intent, establish dominance, show arousal, preserve the nest te

"Mary and John Crane's flight back toward their nesting grounds in Alaska was starting differently than most years. It wasn't that they had lost each other agai