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BBS Route · California · BCR 33

Goldstone Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 45 species recorded across 26 survey years, no longer active.

45Species 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 →
1968–2009Span
3Observers

Bird Species Found on California Goldstone

Top 40 of 45 species by most recent count. Each links to its species trend.

Species recorded on the Goldstone 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
Ash-throated FlycatcherTyrannidae152009+94%1970
Black-throated SparrowPasserellidae142009-53%1970
Loggerhead ShrikeLaniidae132009-59%1970
Horned LarkAlaudidae122009-51%1970
Gambel's QuailOdontophoridae102006-37%1986
Bell's SparrowPasserellidae102009-8%1987
LeConte's ThrasherMimidae92009-84%1970
Cactus WrenTroglodytidae82009-73%1970
ChukarPhasianidae82006+700%2002
Mourning DoveColumbidae72009-69%1970
Barn SwallowHirundinidae51998+400%1969
Red-tailed HawkAccipitridae42009-68%1970
Common RavenCorvidae42009+180%1988
American KestrelFalconidae32009+0%1987
Northern MockingbirdMimidae32009+89%1989
Western MeadowlarkIcteridae32004+0%1993
Brown-headed CowbirdIcteridae31994+200%1991
Scott's OrioleIcteridae22009-17%1970
House FinchFringillidae22009-36%1989
House SparrowPasseridae21968n/an/a
Western KingbirdTyrannidae22009-53%1987
European StarlingSturnidae22006-43%1991
Ladder-backed WoodpeckerPicidae22006-14%1990
Northern Rough-winged SwallowHirundinidae22008+100%1970
Burrowing OwlStrigidae22005+0%1987
Lesser NighthawkCaprimulgidae22004-43%1994
Cliff SwallowHirundinidae21991n/an/a
Common PoorwillCaprimulgidae21992n/an/a
Greater RoadrunnerCuculidae12009+25%1989
Rock WrenTroglodytidae12009+0%1987
Yellow WarblerParulidae11969n/an/a
Great Horned OwlStrigidae12009-17%1988
Say's PhoebeTyrannidae12009+0%1989
VerdinRemizidae12009-50%1989
Turkey VultureCathartidae12007-70%1993
Cooper's HawkAccipitridae11987n/an/a
PhainopeplaPtiliogonatidae12008+40%1989
Black-tailed GnatcatcherPolioptilidae11988n/an/a
Lark SparrowPasserellidae11989n/an/a
Costa's HummingbirdTrochilidae12005-43%1995

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