BirdAnalyst
BBS Route · Oregon · BCR 9

Crooked Riv. Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 14 survey years, still active.

76Species 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 →
14Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2024Span
3Observers

Bird Species Found on Oregon Crooked Riv.

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Crooked Riv. 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
Western MeadowlarkIcteridae692024+15%1996
Cliff SwallowHirundinidae302021+171%1999
Brewer's SparrowPasserellidae262024-58%1996
Mountain BluebirdTurdidae172024-25%1996
Vesper SparrowPasserellidae132024-60%1996
Common RavenCorvidae122024+56%1996
Sage ThrasherMimidae122024-87%1996
Pinyon JayCorvidae122022n/an/a
Rock WrenTroglodytidae112024-57%1996
Gray FlycatcherTyrannidae102024-33%1996
Sagebrush SparrowPasserellidae102024-23%1996
Mourning DoveColumbidae82024+138%1999
Loggerhead ShrikeLaniidae62019+500%1999
Northern Rough-winged SwallowHirundinidae62017+100%1996
Sandhill CraneGruidae62024-14%2002
Chipping SparrowPasserellidae52024+50%2005
California QuailOdontophoridae52005+0%1999
Wilson's SnipeScolopacidae32024-11%1999
Black-billed MagpieCorvidae32024-75%1997
Yellow-headed BlackbirdIcteridae32005-50%1997
Common NighthawkCaprimulgidae32017+200%1996
House SparrowPasseridae32002+50%1996
ChukarPhasianidae32005+50%1997
Green-tailed TowheePasserellidae31997n/an/a
KilldeerCharadriidae22024+100%1996
American KestrelFalconidae22024+0%1996
Horned LarkAlaudidae22024-81%1996
Brewer's BlackbirdIcteridae22023-73%1996
Red-winged BlackbirdIcteridae22024-79%1999
Cassin's FinchFringillidae22024-65%2004
Turkey VultureCathartidae22002+100%1996
American RobinTurdidae22023-38%1999
Ash-throated FlycatcherTyrannidae22024+0%2005
Blue-winged TealAnatidae22002n/an/a
Northern House WrenTroglodytidae22002n/an/a
Canyon WrenTroglodytidae22017n/an/a
Western BluebirdTurdidae22024n/an/a
Great Blue HeronArdeidae11994n/an/a
Red-tailed HawkAccipitridae12024-50%1997
Swainson's HawkAccipitridae12024-33%2002

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