Sandhill Cranes nest in small, isolated wetlands -- marshes, bogs, or swales, though occasionally on dry land—within about 300 yards of the edges of larger ones. They prefer areas with vegetation growing in standing water, but some nest on dry ground. Their food includes berries, small mammals, insects, snails, reptiles, and amphibians. Sandhill Cranes mate for life, choosing their partners based on dancing displays. Displaying birds stretch their wings, pump their heads, bow, and leap into the air. Predators include foxes, raccoons, coyotes, wolves, bobcats, crows, ravens, eagles, and owls.
Listen to this YouTube clip to hear what they sound like:
Crane information from Cornell University: