BirdAnalyst
BBS Route · Oregon · BCR 10

Unity Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 116 species recorded across 18 survey years, still active.

116Species 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 →
18Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1992–2025Span
4Observers

Bird Species Found on Oregon Unity

Top 40 of 116 species by most recent count. Each links to its species trend.

Species recorded on the Unity 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
Red-winged BlackbirdIcteridae812025+411%1994
American RobinTurdidae552025+12%1994
Brewer's BlackbirdIcteridae282025+43%1994
Western TanagerCardinalidae252025+96%1994
Black-billed MagpieCorvidae192025+600%1994
Cassin's FinchFringillidae122025+31%1994
Tree SwallowHirundinidae122025+25%2002
Hermit ThrushTurdidae102025-57%1994
Common RavenCorvidae92025-52%1994
Mourning DoveColumbidae82025+0%1994
Dusky FlycatcherTyrannidae82025-59%1995
Cassin's VireoVireonidae82025+22%2023
Wilson's SnipeScolopacidae72025-4%1994
Northern House WrenTroglodytidae72025-4%1994
Song SparrowPasserellidae72025+189%1999
Vaux's SwiftApodidae62004+120%1995
Hammond's FlycatcherTyrannidae62025+30%1994
European StarlingSturnidae62025+575%2002
Mountain ChickadeeParidae62025-75%1994
California QuailOdontophoridae62025-61%1999
Lewis's WoodpeckerPicidae62025+20%2022
Pine SiskinFringillidae52025-76%1994
Red-breasted NuthatchSittidae52025-73%1994
Western MeadowlarkIcteridae52025-31%1995
Ruffed GrousePhasianidae52004+67%1999
MacGillivray's WarblerParulidae52025+175%2022
Red-tailed HawkAccipitridae42025-8%1994
Western Wood-PeweeTyrannidae42025-23%1994
Steller's JayCorvidae42025+13%1994
Chipping SparrowPasserellidae42025-67%1994
Brewer's SparrowPasserellidae42025-67%1994
Yellow WarblerParulidae42025-33%1994
Townsend's SolitaireTurdidae42025+0%1994
Grasshopper SparrowPasserellidae41994n/an/a
Black-headed GrosbeakCardinalidae42025+40%2018
Prairie FalconFalconidae31992n/an/a
Green-tailed TowheePasserellidae32025+100%1994
Mountain BluebirdTurdidae32025+71%1994
Williamson's SapsuckerPicidae32025-46%1995
Olive-sided FlycatcherTyrannidae32025-17%1996

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