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BBS Route · California · BCR 32

Rumsey Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 107 species recorded across 37 survey years, no longer active.

107Species 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 →
37Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1969–2008Span
3Observers

Bird Species Found on California Rumsey

Top 40 of 107 species by most recent count. Each links to its species trend.

Species recorded on the Rumsey 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
Cliff SwallowHirundinidae1252008-2%1971
WrentitSylviidae792008+936%1971
Ash-throated FlycatcherTyrannidae67200814×1971
Red-winged BlackbirdIcteridae56200827×1984
California QuailOdontophoridae472008-34%1971
Orange-crowned WarblerParulidae452008+173%1982
California Scrub-JayCorvidae422008-15%1971
Spotted TowheePasserellidae412008+885%1971
California TowheePasserellidae382008+212%1971
Oak TitmouseParidae372008+920%1972
Lesser GoldfinchFringillidae362008+238%1971
Acorn WoodpeckerPicidae342008+43%1971
Tricolored BlackbirdIcteridae302006-15%1997
Mourning DoveColumbidae292008-44%1971
Black-headed GrosbeakCardinalidae212008+152%1971
California ThrasherMimidae192008+767%1971
House FinchFringillidae162008-75%1971
Bewick's WrenTroglodytidae162008+700%1971
Nuttall's WoodpeckerPicidae152008+83%1971
Western KingbirdTyrannidae132008-73%1971
Bullock's OrioleIcteridae112008-43%1971
BushtitAegithalidae112008-2%1972
Black PhoebeTyrannidae112008+533%1974
Song SparrowPasserellidae112008+600%1986
Common RavenCorvidae102008+233%1984
White-breasted NuthatchSittidae92008+44%1975
Anna's HummingbirdTrochilidae92008+81%1972
Western Wood-PeweeTyrannidae82008+175%1978
Bell's SparrowPasserellidae82008-8%1982
Western TanagerCardinalidae82008+25%1982
Blue-gray GnatcatcherPolioptilidae82008+260%1982
Turkey VultureCathartidae72008+33%1973
Rock PigeonColumbidae71994+50%1975
Lesser NighthawkCaprimulgidae62008+80%1975
Yellow-billed MagpieCorvidae62008+26%1971
Western MeadowlarkIcteridae62008+475%1974
American CrowCorvidae62008+140%1977
Mountain QuailOdontophoridae62008+136%1985
Western BluebirdTurdidae42008+0%1974
Brown-headed CowbirdIcteridae42008+200%1973

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