Olivaceous Siskin (Spinus olivaceus) [XC98247]
by Dan Lane from Wildsumaco, 5km NW Guagua Sumaco, Napo, Ecuador (song)
Olivaceous Siskin (Spinus) [XC260072]
by John V. Moore from Napo: km 11.6 Narupa-Loreto road, Ecuador (song)
Subspecies
No subspecies.
Has been considered conspecific with Hooded Siskin (Spinus magellanicus), differing mainly in habitat preference, but hybridizes in area of range overlap in north-western Peru. Further research is required.