Violet-headed Hummingbird (Klais guimeti) in flight, under the rain

Violet-headed Hummingbird (Klais guimeti) male, in flight under the rain at the lowlands of Costa Rica. To hover in mid-air at rapid wing-flapping rates, which vary from around 12 beats per second in the largest species, to in excess of 80 in some of the smallest.

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