2:00 minutes (1.59 MB)
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The ringing notes of a Rock Wren’s song reverberate across a steep, rocky slope in the American West. The Rock Wren is most at home in piles of rock rubble at the foot of cliffs, a life zone known as a talus slope. These wrens find shelter, safe nesting, and a good supply of insects in the crevices among the talus. They often share the slope with birds such as Say’s Phoebe and the sweet singing Canyon Wren. Venture high enough in the western mountains, above tree level into the alpine zone, and you’ll find talus slopes interspersed with bits of low tundra – home to one of the continent’s most reclusive birds, the White-tailed Ptarmigan.