Juveniles are essentially dull dark brown overall, with less contrast between the upper- and underparts than the adults.

[3] The black-throated wren was long thought to be found from southeastern Nicaragua through eastern Costa Rica into western Panama.

Its breeding season in Costa Rica appears to span from April or May into August.

[3] The black-throated wren's song is "a distinctive series of rich whistles ending in a trill" [1].

Its calls include "a fast, nasal to wooden rattling 'praaaaht'" and a "guttural rolling 'beewr' or 'bweeurr'".