Head to head
Patagonian Yellow-Finch vs Band-tailed Sierra-finch
Both are seed-eating finches of open Andean and Patagonian habitat, but their geographic ranges differ enormously.
| Patagonian Yellow-Finch | Band-tailed Sierra-finch | |
|---|---|---|
| Scientific name | Sicalis lebruni | Phrygilus alaudinus |
| Conservation status | Least Concern | Least Concern |
| Range | Patagonian steppe of southern Argentina and Chile | Ecuador to Argentina and Chile |
| Distinguishing feature | Dusky yellow-olive plumage | Pale band crossing the tail |
| Habitat | Grassland, desert | Grassland, mountains |
| Diet | Grass seeds, small insects | Seeds and small insects |
| Flocking behaviour | Forages in small, loose flocks | Forms flocks outside the breeding season |
| Elevation range | Lowland steppe | Lower valleys to high mountain terrain |
Patagonian Yellow-finch vs Band-tailed Sierra-finch: common questions
Which finch has the larger range?
The band-tailed sierra-finch does, found across a vast stretch of the Andes from Ecuador to Argentina and Chile, while the Patagonian yellow-finch is confined to the open steppe of southern Argentina and Chile.
How can you tell these two finches apart?
The Patagonian yellow-finch shows dusky yellow-olive plumage, while the band-tailed sierra-finch is identified by a distinctive pale band crossing its tail feathers.
Do both finches migrate?
Neither undertakes long-distance migration, though the Patagonian yellow-finch shifts to lower, more sheltered ground in the harshest part of the Patagonian winter, and the band-tailed sierra-finch forms flocks across its elevational range outside the breeding season.