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In flying straight, their wings beat 75 times a second. For hovering to sip nectar, the wings slow to 55 beats per second and speed up to 61 beats per second when backing out of a flower. All of these figures were determined with slow-motion photography.
Iridescent colors of plumage are not the only way in which hummingbirds are distinct from other birds. They have long, brush-tipped, tubular tongues for sipping nectar. This tongue, like a built-in “drinking straw,” can be extended far beyond the tip of the long bill and withdrawn
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