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BBS Route · California · BCR 32

Lake Success Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 110 species recorded across 10 survey years, still active.

110Species 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 →
10Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–1996Span
3Observers

Bird Species Found on California Lake Success

Top 40 of 110 species by most recent count. Each links to its species trend.

Species recorded on the Lake Success 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
American GoldfinchFringillidae421978+42%1974
Black-headed GrosbeakCardinalidae331996+44%1974
Brewer's BlackbirdIcteridae291996-48%1974
House SparrowPasseridae291996-52%1974
Northern House WrenTroglodytidae281996+571%1975
Band-tailed PigeonColumbidae261996+367%1978
Ash-throated FlycatcherTyrannidae241996+233%1976
Oak TitmouseParidae231996-10%1974
Lesser GoldfinchFringillidae171996+155%1980
Acorn WoodpeckerPicidae161996-51%1974
House FinchFringillidae151996-53%1974
California QuailOdontophoridae141996+17%1974
Western KingbirdTyrannidae141996-65%1974
European StarlingSturnidae141996-21%1974
Mourning DoveColumbidae131996-52%1974
BushtitAegithalidae131996-31%1974
Spotted TowheePasserellidae121996+179%1975
WrentitSylviidae121996+53%1974
Steller's JayCorvidae111996+123%1974
California Scrub-JayCorvidae111996-27%1974
White-throated SwiftApodidae101980-20%1974
Bullock's OrioleIcteridae91996-40%1974
California TowheePasserellidae91996-6%1974
Northern MockingbirdMimidae91996-39%1974
Brown-headed CowbirdIcteridae91996+257%1980
Lazuli BuntingCardinalidae81996+11%1978
Western MeadowlarkIcteridae71981+24%1974
Bewick's WrenTroglodytidae71996+64%1974
Nashville WarblerParulidae71996-13%1980
Orange-crowned WarblerParulidae71996n/an/a
Great Blue HeronArdeidae61981+50%1974
Red-winged BlackbirdIcteridae61996-89%1974
Ring-necked PheasantPhasianidae51996+38%1974
Rufous-crowned SparrowPasserellidae51972n/an/a
Western TanagerCardinalidae51996+460%1974
Cliff SwallowHirundinidae51996+499%1975
American RobinTurdidae51996-66%1974
Mountain QuailOdontophoridae51996+25%1980
Black PhoebeTyrannidae41996+300%1974
Purple FinchFringillidae41996-59%1976

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