BirdAnalyst
BBS Route · Oregon · BCR 9

Blitzen 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 65 species recorded across 22 survey years, still active.

65Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1994–2025Span
2Observers

Bird Species Found on Oregon Blitzen 2

Top 40 of 65 species by most recent count. Each links to its species trend.

Species recorded on the Blitzen 2 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 LarkAlaudidae1352025+44%1996
Brewer's SparrowPasserellidae882025-49%1996
Western MeadowlarkIcteridae752025+79%1996
Vesper SparrowPasserellidae652025+78%1996
Red-winged BlackbirdIcteridae302025+47%2000
Sage ThrasherMimidae252025-60%1996
Common RavenCorvidae192025+308%1996
Lark SparrowPasserellidae162025+0%1999
Mourning DoveColumbidae152025+79%1996
Yellow-headed BlackbirdIcteridae152025+533%1997
Barn SwallowHirundinidae152012+425%1996
Common NighthawkCaprimulgidae142025+640%1999
Brewer's BlackbirdIcteridae132025-60%1996
Sagebrush SparrowPasserellidae122025-80%1996
Rock WrenTroglodytidae122025-7%1996
Gray FlycatcherTyrannidae92025-60%1996
Rock PigeonColumbidae82000n/an/a
Brown-headed CowbirdIcteridae62025-76%1996
European StarlingSturnidae62025-8%1998
Swainson's HawkAccipitridae52025+17%2002
White-faced IbisThreskiornithidae52025n/an/a
Loggerhead ShrikeLaniidae42025+58%1996
ChukarPhasianidae42025+56%2012
House FinchFringillidae42025+0%2000
Common PoorwillCaprimulgidae42025+300%2018
Northern HarrierAccipitridae32025+29%1997
Red-tailed HawkAccipitridae32025+89%1996
American KestrelFalconidae32025+267%1996
Short-eared OwlStrigidae32012+200%1994
Savannah SparrowPasserellidae32025+20%2000
Western KingbirdTyrannidae32025+50%2015
GadwallAnatidae32025+50%2024
Wilson's SnipeScolopacidae22025+67%1999
Burrowing OwlStrigidae22025+0%1999
Black-billed MagpieCorvidae22025+100%2001
Cliff SwallowHirundinidae22025+33%1997
Mountain BluebirdTurdidae22024+125%2014
WilletScolopacidae22025-14%1997
KilldeerCharadriidae22025+0%1999
Long-billed CurlewScolopacidae22002+0%1996

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.