BirdAnalyst
BBS Route · Oregon · BCR 9

Merrill Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 120 species recorded across 15 survey years, still active.

120Species 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 →
15Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1993–2022Span
6Observers

Bird Species Found on Oregon Merrill

Top 40 of 120 species by most recent count. Each links to its species trend.

Species recorded on the Merrill 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
European StarlingSturnidae3432022+23%1995
California GullLaridae2502022+64%2005
House SparrowPasseridae1632022-20%1995
Yellow-headed BlackbirdIcteridae1412022+594%1996
Canada GooseAnatidae134202213×1997
Red-winged BlackbirdIcteridae982022-3%1995
White-faced IbisThreskiornithidae502022+118%2002
Eurasian Collared-DoveColumbidae322022+226%2013
Sandhill CraneGruidae262022+344%1996
Brewer's BlackbirdIcteridae252022-54%1995
Red-tailed HawkAccipitridae242022+104%1995
Black-billed MagpieCorvidae232022+47%1995
Tricolored BlackbirdIcteridae202012-18%1995
American AvocetRecurvirostridae202022+356%1997
Northern ShovelerAnatidae182022+850%2004
Brown-headed CowbirdIcteridae162022-44%1995
American RobinTurdidae152022-71%1995
KilldeerCharadriidae142022-27%1995
House FinchFringillidae132022-78%1995
Marsh WrenTroglodytidae132022+200%1995
American White PelicanPelecanidae122018+153%1997
Western MeadowlarkIcteridae112022-88%1995
Common RavenCorvidae92022+269%1995
GadwallAnatidae92022-46%1997
Western KingbirdTyrannidae82022-24%1995
Ash-throated FlycatcherTyrannidae72022+63%1995
Ring-billed GullLaridae62022+90%1995
MallardAnatidae62022-23%1995
Mourning DoveColumbidae62022+34%1995
Barn SwallowHirundinidae62022-51%1995
Horned LarkAlaudidae52018-67%1995
Cliff SwallowHirundinidae52022+240%1995
Forster's TernLaridae52013+30%2004
Swainson's HawkAccipitridae52022+200%2006
American WigeonAnatidae52005n/an/a
Wilson's SnipeScolopacidae42013-42%1996
Common YellowthroatParulidae42022+200%1994
Bald EagleAccipitridae42022+75%2002
Tree SwallowHirundinidae42022+17%1997
American BitternArdeidae42013+300%1998

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