Photo Credit: earthtimes.org

Some say it with flowers, some will serenade with a song, but for male hummingbirds the trick of winning hearts may lie in a flutter of the tail. This shaking of male tail-feathers produces a note that could be sweet enough to charm watching females - a sound that appears to be distinct for each species of hummingbird. Now the complex resonances of these feathery love-making moves have been teased apart, in new research being published in Science today.