Blackbird song: 2 sonagrams. [Click on the sonagrams to here the sound].
Common form of bird song sonagrams showing only the main frequency of the sound. Here between 1 and 4 kilohertz (cycles per second).
Wide frequency sonagram showing rich harmonics (the higher parallel lines) that indicate the timbre of the sound. Note frequency scale on y-axis (0-10kHz); and the collared dove song running along the bottom.
Click here to hear this song at around a third the speed of the original.
Click here to hear the song at around a sixth of the speed.
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