Sandhill Cranes Strolling

The two larger cranes ( left and center) are the parents and the smaller bird on the right, a near adult, is their most recent offspring - about 10 months old.<...
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The two larger cranes ( left and center) are the parents and the smaller bird on the right, a near adult, is their most recent offspring - about 10 months old.

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. Although each female usually lays two eggs, only one nestling typically survives to fledge. Mated pairs and their juvenile offspring stay together all through the winter, until the 9- to 10-month-old juveniles finally separate from their parents the following spring. During migration and winter the family units group together with other families and nonbreeders, forming loose roosting and feeding flocks—in some places numbering in the tens of thousands. Eggs, nestlings, and injured or sick adults may be hunted by foxes, raccoons, coyotes, wolves, bobcats, crows, ravens, eagles, and owls. Cranes attack aerial predators by leaping into the air and kicking their feet forward. They threaten terrestrial predators by spreading their wings and hissing, eventually resorting to kicking.

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