Spinus olivaceus
The Olivaceous Siskin (*Spinus olivaceus*) is a charming and often overlooked member of the finch family, *Fringillidae*, endemic to the high-altitude Andes. Measuring approximately 10-11 cm (4 inches) in length with a compact build, this small passerine is characterized by its predominantly olive-green plumage. Males exhibit brighter yellowish-olive underparts and rump, complemented by vivid yellow wingbars and tail edges that contrast with their blackish flight feathers, making for a striki...
Exclusively found in humid montane forests, cloud forests, and their edges, particularly favoring areas with alder (*Alnus*) and podocarpus (*Podocarpus*) trees, typically at elevations between 1,000 to 3,500 meters.
Primarily granivorous, feeding heavily on seeds from alder (*Alnus*) and podocarpus (*Podocarpus*) trees, supplemented with small insects, particularly during the breeding season.
Olivaceous Siskins are diurnal and highly active, especially when foraging. They employ an acrobatic foraging strategy, often seen hanging upside down from cones or catkins to extract seeds. Outside the breeding season, they are highly gregarious, forming small to large, bustling flocks that move...
The Olivaceous Siskin is a resident species found exclusively along the Andean mountain chain in South America. Its distribution stretches from southern Ecuador, continuing south through Peru and Bolivia, primarily along the western slopes of the Andes. A small, disjunct population is also known ...
Least Concern
- The Olivaceous Siskin is a highly acrobatic feeder, often observed hanging upside down to extract seeds from cones and catkins, a common trait among siskins. - Despite its name, its olive plumage can be surprisingly effective camouflage in the dense, green foliage of Andean cloud forests. - It ...