People often describe the house wren as plain because the bird has simple brown colors. But don't disregard these backyard guests. House wrens measure 4 3/4 inches long with a wingspan of 6 inches.
All populations brownish above, paler gray-brown or gray ... Migration: most birds in North America migratory. Major spring movement follows that of the winter wren; major fall movement precedes ...
Vocal and plumage variation in the Bewick’s wren is extensive ... Plumage variable, but all subspecies gray-brown to rufous-brown above, gray-white below, with long, pale supercilium.