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BBS Route · California · BCR 5

Orleans Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 26 survey years, no longer active.

100Species 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2012Span
8Observers

Bird Species Found on California Orleans

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Orleans 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 TanagerCardinalidae462012+78%1974
Black-headed GrosbeakCardinalidae252012-22%1974
Black-throated Gray WarblerParulidae242012-36%1975
Steller's JayCorvidae222012+52%1974
Brewer's BlackbirdIcteridae15199415×1972
Spotted TowheePasserellidae122012+200%1975
Nashville WarblerParulidae112012-32%1974
Orange-crowned WarblerParulidae112012+433%1975
Cassin's VireoVireonidae102012-8%1975
Yellow-breasted ChatIcteriidae102012-7%1974
MacGillivray's WarblerParulidae102012-42%1977
Cedar WaxwingBombycillidae91987+350%1981
Violet-green SwallowHirundinidae82012-80%1974
Northern Rough-winged SwallowHirundinidae82012-23%1974
California Scrub-JayCorvidae82012+240%1976
American RobinTurdidae72012+3%1974
Turkey VultureCathartidae62011+13%1975
Rufous HummingbirdTrochilidae52009+75%1975
Black PhoebeTyrannidae52012+150%1983
Lesser GoldfinchFringillidae52012-68%1974
Chipping SparrowPasserellidae51989+14%1974
Tree SwallowHirundinidae52012-71%1975
Common RavenCorvidae52012-52%1975
Pine SiskinFringillidae51984+67%1983
Bank SwallowHirundinidae52009n/an/a
Spotted SandpiperScolopacidae42012-11%1974
Hutton's VireoVireonidae42012-33%1975
Belted KingfisherAlcedinidae41983+20%1977
Hermit WarblerParulidae42012+43%1980
Lazuli BuntingCardinalidae32012-53%1974
Barn SwallowHirundinidae31989+133%1978
Red-winged BlackbirdIcteridae31994+200%1976
Acorn WoodpeckerPicidae22012+0%1976
Vesper SparrowPasserellidae21972n/an/a
Yellow WarblerParulidae22012-43%1975
House SparrowPasseridae21980+0%1972
Mountain ChickadeeParidae21977+100%1972
Townsend's SolitaireTurdidae21979+100%1972
Wilson's WarblerParulidae22011-50%1975
American DipperCinclidae22012+50%1976

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