The bicolored wren (Campylorhynchus griseus) is a species of bird in the family Troglodytidae.

An off-white supercilium separates a dark brown stripe through the eye from the crown and the rest of the face is also white.

The juveniles are grayer than the adults; their caps are mottled gray-brown and their underparts are grayish white.

C. g. bicolor occurs in arid thorn scrub and the other subspecies in significantly more humid areas.

[4] The male bicolored wren's song is "a series of multiple loud gurgling notes" [1].

[1] It is "common or abundant [and can] tolerate substantial modification of habitat, provided that sufficient bushes remain; for example, [it] can co-exist with agricultural practices such as ranching.