BirdAnalyst
BBS Route · California · BCR 15

Lakeshore Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 117 species recorded across 41 survey years, still active.

117Species 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 →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–2024Span
7Observers

Bird Species Found on California Lakeshore

Top 40 of 117 species by most recent count. Each links to its species trend.

Species recorded on the Lakeshore 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 TanagerCardinalidae352024-8%1974
Lazuli BuntingCardinalidae322024+775%1976
Mountain ChickadeeParidae272024-26%1974
Western Wood-PeweeTyrannidae222024-51%1974
Steller's JayCorvidae222024+19%1974
Fox SparrowPasserellidae202024+65%1974
Lesser GoldfinchFringillidae162024-40%1974
American RobinTurdidae152024-41%1974
Cliff SwallowHirundinidae151983+200%1976
Spotted TowheePasserellidae132024+207%1974
MacGillivray's WarblerParulidae112024+108%1974
Pine SiskinFringillidae102005+117%1978
Song SparrowPasserellidae92024+163%1974
Brown CreeperCerthiidae82024-58%1974
Ring-billed GullLaridae81999n/an/a
Warbling VireoVireonidae72024+367%1974
Common RavenCorvidae72024+500%1977
Lawrence's GoldfinchFringillidae72024n/an/a
Black-throated Gray WarblerParulidae62009-31%1976
Hairy WoodpeckerPicidae52024+60%1976
Anna's HummingbirdTrochilidae52024+100%1974
Brewer's BlackbirdIcteridae52024+56%1974
Purple FinchFringillidae52024-40%1974
Western BluebirdTurdidae52024-9%1976
Sooty GrousePhasianidae52007+400%1989
Vaux's SwiftApodidae52003n/an/a
Williamson's SapsuckerPicidae42004+100%1983
Red-winged BlackbirdIcteridae42024+0%1974
Nashville WarblerParulidae42024-77%1974
Yellow WarblerParulidae42014-10%1977
Red-breasted NuthatchSittidae42024-49%1974
California GullLaridae31992-58%1977
Acorn WoodpeckerPicidae32024+183%1978
Olive-sided FlycatcherTyrannidae32024-63%1974
Evening GrosbeakFringillidae32002-29%1977
Cassin's FinchFringillidae32024-70%1976
Chipping SparrowPasserellidae32024-89%1974
Ruby-crowned KingletRegulidae32004-17%1977
WrentitSylviidae32014+167%1977
Lincoln's SparrowPasserellidae32024-14%1980

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