Based on 2,198 research-grade iNaturalist observations in Oregon, Pine Siskin is most often recorded in December; in Oregon it behaves like a seasonal. It ranks #59 among birds recorded in the state in our data.
Spinus pinus
Pine Siskin in Oregon by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Oregon in December

Dark-eyed Junco

Mallard

Bald Eagle

Red-tailed Hawk
California Scrub-Jay

Great Blue Heron
Anna's Hummingbird
American Wigeon
Places to look in Oregon
National ForestWillamette National Forest
Mount Hood National Forest
National ForestDeschutes National Forest
Hoyt Arboretum
Leach Botanical Garden
Umatilla National Forest
FAQ
When does Pine Siskin appear in Oregon?
Mainly November–May, with the most records in December.
How common is Pine Siskin in Oregon?
It ranks #59 by number of iNaturalist observations among birds in Oregon (2,198 records in our sample).