Other wrens with indistinct superciliums are Winter, Sedge and Rock Wrens. Winter Wren is more reddish-brown above, darker below and has a shorter tail. Sedge Wren is buffier on the breast and is streaked with white on the crown and back. Rock Wren is larger with a contrast between the gray back and brown rump and has buffy tips to the tail.
Length and wingspan from: Robbins, C.S., Bruun, B., Zim, H.S., (1966). Birds of North America. New York: Western Publishing Company, Inc.