Using high-speed cameras, a new study reveals Anna’s hummingbirds turn sideways to shimmy through gaps half as wide as their wingspan.
). New high-speed video now shows how, using a bit of aerial gymnastics, hummingbirds can also slip through gaps narrower than their wingspan.
“This is a new insight into the amazing capacity of hummingbirds,” says Bret Tobalske, a biomechanist at the University of Montana in Missoula who wasn’t involved with the research. Sideways flight to maneuver through gaps is “pretty remarkable” and highlights how unique hummingbirds are among birds, he says.
He and colleagues caught four wild male Anna’s hummingbirds and trained them to fly between two feeders inside an enclosed flight arena. Once the birds were accustomed to the setup, the team introduced barriers with a hole ranging from 6 to 12 centimeters in diameter, equivalent to about half or a full hummingbird wingspan.) had to fit through holes smaller than their wingspan to reach a feeder filled with nectar.
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