Olivaceous Piha

The olivaceous piha is 23 to 24 cm (9.1 to 9.4 in) long; three males weighed about 72 to 76 g (2.5 to 2.7 oz). The sexes have similar plumage. Adult males of the nominate subspecies have a mostly olive head with brighter olive ear coverts and a partially hidden black crest in the middle of the crown. Their upperparts are olive green that is brightest on the rump. Their tail is a browner to grayer olive than their upperparts with thin olive edges on the feathers. Their wings are mostly brown with thin olive edges on the flight feathers. Voice: As of August 2025 xeno-canto had five recordings of olivaceous piha vocalizations; the Cornell Lab's Macaulay Library had one of them and four others. Olivaceous piha vocalizations "remain one of the great mysteries of the avifauna of humid montane forest of the Andes". A "short rattle" has been attributed to the species by some recordists.