Whooping cranes are the tallest birds in North America. Their population had dropped to around 20 in the 1940s, but through conservation efforts, they number around 600 currently.
A few of the majestic white birds were photographed over Chicago by birders and members of the IL Birders Exchanging Thoughts group.
Whooping cranes can exceed 5 feet in height, and they have a 7½-foot wingspan.
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