BirdAnalyst
BBS Route · Oregon · BCR 9

Willow Spg Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 27 species recorded across 2 survey years, no longer active.

27Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
2Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–1971Span
2Observers

Bird Species Found on Oregon Willow Spg

Top 27 of 27 species by most recent count. Each links to its species trend.

Species recorded on the Willow Spg route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Horned LarkAlaudidae1981971-7%1969
Cliff SwallowHirundinidae1521971+176%1969
Western MeadowlarkIcteridae1381971-35%1969
Brewer's SparrowPasserellidae711971+45%1969
Sage ThrasherMimidae591971+20%1969
Sagebrush SparrowPasserellidae551971+323%1969
ChukarPhasianidae211971+133%1969
Common RavenCorvidae171971+143%1969
KilldeerCharadriidae111971+267%1969
Brewer's BlackbirdIcteridae71971+75%1969
Rock WrenTroglodytidae71971+17%1969
California QuailOdontophoridae61969n/an/a
Mourning DoveColumbidae51971-81%1969
Turkey VultureCathartidae41971n/an/a
Cinnamon TealAnatidae31971+50%1969
Lark SparrowPasserellidae31971-25%1969
GadwallAnatidae21971+0%1969
American AvocetRecurvirostridae21971-60%1969
Gray FlycatcherTyrannidae21969n/an/a
Loggerhead ShrikeLaniidae21971-67%1969
House FinchFringillidae21971n/an/a
American WigeonAnatidae11969n/an/a
Green-winged TealAnatidae11969n/an/a
Northern PintailAnatidae11969n/an/a
Wilson's PhalaropeScolopacidae11969n/an/a
Red-tailed HawkAccipitridae11969n/an/a
Western KingbirdTyrannidae11971n/an/a

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.