You will usually hear them before you see them. House wrens are small birds, but they are a great addition to almost any garden.
I'm standing in my garden watching a tiny brownish bird streak from the orange tree to the fence top. Once there it pauses, looks around for a moment, then begins singing. The song is melodious and wonderful, the way a songbird is supposed to sound, not chirpy, but musical.
After a brief recital the tiny bird flits over to the vegetables, broccoli leaves quiver and off comes a small caterpillar. He takes it to another fence row and devours it.
Every garden needs a couple of house wrens. They're the perfect backyard bird: tame, highly energetic, insect eating, neat and fastidious, and they give the garden a voice.
Wrens shouldn't be confused with sparrows or finches, which differ in many important ways. Sparrows and finches are seed eaters, are almost twice a wren's size, arrive in groups, have little if any song and often leave a mess for the gardener to clean up. In addition to their beautiful voice, wrens however appear in pairs, don't need birdseed, are courteous gardeners and are delightfully entertaining. A garden seems to do better with wrens in it.