The troops move by dug-out canoe or walk the forest paths.

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If I walk through a forest in Georgia, where I live, and fail to see or hear the pileated woodpecker, am I permitted to conclude that the bird is absent?

WSJ: The Brains of the Animal Kingdom

Even in the afternoon sun though, a short walk can easily lead you into perennial mist forest and over the trickle of a mountain stream.

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In the thick forest-savannah mosaic of northern Congo, many days' walk from any tarmac, your correspondent unearthed a milestone, half-buried in the leaf-litter, pointing to the small town of Badai, 15km to the east.

ECONOMIST: Seeing the wood

The Forest of Dean markets itself on being this bucolic place where everyone comes to walk and cycle, spot wildlife, and photograph wildlife.

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The cobblestones were silvery with rain, and Li donned a forest-green felt outback hat and pointed us ahead as he started at a brisk walk.

NEWYORKER: The Grand Tour

Early next morning before the park is overrun by weekend visitors, walk another nature trail with Vakale to learn about indigenous plant such as kadamba and flame of the forest, and bird species such as golden orioles and racket-tailed drongos.

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