Grey-barred Wren
Campylorhynchus megalopterus
The gray-barred wren is 17 to 19.5 cm (6.7 to 7.7 in) long and weighs 32.8 to 33.5 g (1.16 to 1.18 oz). Both sexes of the nominate have a grayish crown with a black center, a black and white striped nape, and black shoulders and back barred with white. Their throat and chest are white with black spots and the flanks buff with blackish bars. C. m. nelsoni is the smaller of the subspecies and its underparts' spots and bars are grayish brown. The juvenile has a solid brown cap and is buff and brownish overall with no bars on the back and no spots on the chest. Voice: The gray-barred wren's song is "a rapid harsh chatter" ; both sexes sing in duet. Its call is "a harsh 'karrr'" .
ID text from Wikipedia, CC BY-SA 4.0
Spotted Wren
Campylorhynchus gularis
The spotted wren is 17 cm (6.7 in) long and weighs 28.3 to 31 g (1.00 to 1.09 oz). Adults of both sexes have a chestnut crown and rufescent brown shoulders and back with dull black and buffy markings. The tail is gray-brown with darker bars. They have a white supercilium and a brown eyestripe above buffy white cheeks. Their chin, throat, and chest are off-white and the sides of the chest have blackish spots. The belly and lower flanks are buffy with faint barring. Voice: The spotted wren's song has been described as "a series of harsh churring notes" and "a series of unmusical gurgling phrases" . Its call is "a gruff 'cheh-cheh-cheht'" .
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Grey-barred Wren and Spotted Wren.