(Campylorhynchus yucatanicus)
The adult Yucatan wren is a small species about 18 centimetres (7 in) long.The face is whitish with a dark eye-stripe and the crown is greyish brown.The upper parts are brown streaked with black and white and the wings are brown barred with dark brown and white.The tail is black barred with grey,with white tips to some of the outer feathers.The underparts are whitish with a dark cheek-stripe and blackish spotting and barring.The juvenile is similar in appearance to the adult but with less contrast between the upper and underparts.