Ultraviolet Vision
Most birds possess the ability to see color. But birds can also see in the ultraviolet spectrum! Hummingbirds — like this Violet-crowned Hummingbird — may zero in on certain flowers because their petals strongly reflect in the ultraviolet range. Migrating birds may use ultraviolet light to navigate on overcast days, because the sun's ultraviolet rays pass through the cloud cover.
This episode is sponsored by Bird Conservancy of the Rockies. The world needs birds. To learn more about their work and mission, visit birdconservancy.org.
More info and transcript at BirdNote.org.
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