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Bird flight

Fly with a little flap from your friends

In-air measurements of northern bald ibises flying in a V formation show that the birds conform to predictions for saving energy by regulating their relative body position and synchronizing their flapping motion. See Letter p.399

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Figure 1: Spatial synchrony.

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Correspondence to Florian T. Muijres.

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Muijres, F., Dickinson, M. Fly with a little flap from your friends. Nature 505, 295–296 (2014). https://doi.org/10.1038/505295a

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