Happy Wren
Pheugopedius felix
There is little difference between the sexes as adults. They are fairly typical small wrens, with a black and white striped face, a downward curving bill, chestnut upperparts and cream underparts. Howell and Webb give its length as 12.5 – 14 cm. Voice: Like many wrens, happy wrens produce a complex song, described as a "rollicking, gurgling whistle." Songs are less varied among island populations. Pairs of happy wrens primarily use their duet songs for cooperative territory defense.
ID text from Wikipedia, CC BY-SA 4.0

Rufous-breasted Wren
Pheugopedius rutilus
Adult rufous-breasted wrens of the nominate subspecies are 14 cm (5.5 in) long and weigh 13.5 to 18.5 g (0.48 to 0.65 oz). Their crowns and upperparts are warm brown; their tail is gray-brown with heavy dark brown bars. They have a white supercilium with a black edge above it. Their face and throat are speckled black and white. The chest is bright chestnut. The rest of the underparts a duller chestnut with a grayish white center to the belly. Juveniles are duller than the adults and the facial markings are less distinct. The facial pattern and rufous breast are unique in the genus. P. r. Voice: The rufous-breasted wren's songs vary throughout its range. Both sexes sing as a duet but sometimes the male sings alone. Some examples of songs are (Costa Rica) , (Panama) , (Colombia) , (Venezuela) , and (Trinidad) . Its call, "churring and raspy", does not seem to vary as much .
ID text from Wikipedia, CC BY-SA 4.0

Learn this pair in the BeakBrain App
Photo and call practice. Coming soon to iPhone and Android.
Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Happy Wren and Rufous-breasted Wren.