Rock Wren

About the Rock Wren

The Rock Wren is the pale wren of bare stone - gray-brown above, buffy below, finely speckled all over, with a habit no field mark can match: it bounces. A Rock Wren on a boulder does deep, springy knee-bends over and over, as if testing the rock, and no other bird in its country does the same.

It lives among talus slopes, cliff faces, canyon rubble, and dam riprap, probing crevices with its slightly curved bill for insects and spiders that almost no other bird can reach. Rock Wrens seem to need no open water at all, getting everything from their prey - a true desert specialization.

The strangest habit is architectural: the nest, tucked deep in a rock cavity, is approached across a little paved walkway of flat pebbles the wren lays down itself, sometimes with a decorative collection of stones, bones, and trash at the entrance. Why they pave remains an open question.

In Texas, Rock Wrens are year-round birds of the western half - canyons of the Trans-Pecos, Panhandle rimrock, and rocky Hill Country slopes and lake riprap - with some eastward drift in winter. Learn the bounce and the ringing, buzzy song thrown off a canyon wall and the bird becomes easy to find in country that looks empty.