It looks much like a House Wren but is larger with a prominently longer bill, somewhat approaching the Carolina Wren in form.
The Clarion Wren is classified as Vulnerable (VU), considered to be facing a high risk of extinction in the wild.
A number of the Troglodytes species, such as the Clarion Wren, were formerly considered subspecies of the House Wren, and it has been argued that at least the tropical forms of the House Wren should be further split as the Southern House Wren, Troglodytes musculus. The Socorro Wren, in older times placed into Thryomanes (Bewick's Wren), is actually a close relative of the House Wren complex, as indicated by "manners, song, plumage, etc" and by biogeography and mtDNA NADH dehydrogenase subunit 2 sequence analysis. More
* Clarion Wren, Troglodytes tanneri - formerly included in T. aedon * Socorro Wren, Troglodytes sissonii - formerly included in T. aedon * Cobb's Wren, Troglodytes cobbi - formerly included in T. More