No. 5 - Woodpecker

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No. 5 - Woodpecker

Woodpecker

DCL | Getty Images

Woodpeckers are the lumberjacks of the forest, diligently carving out holes in the trunks of large trees in order to reach the delicious ants or termites that may be hiding within. The largest and one of the most common in North America, the pileated woodpecker, has been known to topple large trees with its enormous excavations. Most woodpeckers have multiple adaptations to tree-top living, such as toes modified for climbing, a bill and neck strong enough for drilling into wood, and sharp spines in the tail feathers that stabilize the bird as it digs for food.

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