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lengths for probing for insects deep inside a tree limb or trunk. This tongue is equipped with bristles or barbs at its tip for piercing the larva of a wood boring beetle.
One species, the Flicker, feeds on the ground and consumes great quantities of ants, their favorite food. The sticky tongue is probed deep within an ant nest. Ants attack the intruding tongue, stick to it and ride it in great numbers back into the bird’s mouth.
Recently a friend remarked on a curious behavior of a female Red-bellied Woodpecker: the bird clung to the trunk of a tree and pressed the side of its head against the bark for several minutes. “What was the bird doing?” I was asked. My answer: “Listening for insects.”
It is now known that woodpeckers can hear an insect as it moves about deep in the trunk of a tree. With this astonishing hearing ability, a bird knows where to drill a hole. For many years it was incorrectly assumed that woodpeckers drilled into trees at random, hoping for a meal at the end of his work. If that were true, woodpeckers would have starved long ago.
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