Olivaceous Siskin (Spinus) [XC260078]
by Mitch Lysinger from Napo: km 11.6 Narupa-Loreto road, Ecuador (call, flight call, flight calls)
Olivaceous Siskin (Spinus olivaceus) [XC779372]
by Jerome Fischer from Zumba, Chinchipe, Zamora-Chinchipe, 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.