BirdAnalyst
BBS Route · Oregon · BCR 9

Blitzen Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 62 species recorded across 23 survey years, no longer active.

62Species 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 →
23Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1971–1993Span
10Observers

Bird Species Found on Oregon Blitzen

Top 40 of 62 species by most recent count. Each links to its species trend.

Species recorded on the Blitzen 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 LarkAlaudidae991993-9%1973
Brewer's SparrowPasserellidae861993-73%1973
Western MeadowlarkIcteridae601993+3%1973
Sage ThrasherMimidae421993-6%1973
Rock WrenTroglodytidae351993+355%1973
Rock PigeonColumbidae321981n/an/a
Gray FlycatcherTyrannidae291993+313%1978
Vesper SparrowPasserellidae261993+282%1973
Savannah SparrowPasserellidae181993+96%1974
Greater Sage-GrousePhasianidae16199212×1980
Brewer's BlackbirdIcteridae141993+203%1973
Sandhill CraneGruidae121980n/an/a
Northern PintailAnatidae121981n/an/a
Sagebrush SparrowPasserellidae111993-75%1973
Willow FlycatcherTyrannidae71972+75%1971
Common RavenCorvidae71993+90%1974
Brown-headed CowbirdIcteridae71993+200%1977
Mourning DoveColumbidae61993-48%1973
American CrowCorvidae61972n/an/a
House FinchFringillidae41993+25%1979
Common NighthawkCaprimulgidae41992-66%1975
Grasshopper SparrowPasserellidae41990-55%1976
Northern HarrierAccipitridae31992+60%1977
Red-tailed HawkAccipitridae31993-13%1976
Golden EagleAccipitridae31993+50%1973
Burrowing OwlStrigidae31981+33%1972
Cliff SwallowHirundinidae31992-91%1973
White-crowned SparrowPasserellidae31980n/an/a
Ferruginous HawkAccipitridae31993+100%1986
Prairie FalconFalconidae21993+133%1977
European StarlingSturnidae21991-33%1973
Lark SparrowPasserellidae21993-66%1976
American RobinTurdidae21993+33%1976
Black-billed MagpieCorvidae21992+100%1973
Red-winged BlackbirdIcteridae21991-71%1973
GadwallAnatidae21983n/an/a
American AvocetRecurvirostridae21984n/an/a
Black-throated SparrowPasserellidae21992-44%1985
Mountain BluebirdTurdidae21986n/an/a
KilldeerCharadriidae11989-33%1982

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