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Pup Howl

Vertical scale: frequency (0-4000 hertz); horizontal scale: time (1 frame aprox. equal to 2 seconds); color: signal strength (from lowest to highest, violet, blue, green, yellow, orange, red).

The above example of pup howling comes from a three-month-old pup that has just heard an adult howling near the den site. Notice how its howls are shorter in duration and higher in pitch, a consequence of its small overall size and lung capacity. The howls do have the same modulated structure as the adult lonesome howl, and serve the same role as contact calls.

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What's in a Howl | Ed Bangs | Wolf-Dog Connection
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