BirdAnalyst
BBS Route · California · BCR 32

Creston Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 106 species recorded across 40 survey years, still active.

106Species 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 →
40Years 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
5Observers

Bird Species Found on California Creston

Top 40 of 106 species by most recent count. Each links to its species trend.

Species recorded on the Creston 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
Mourning DoveColumbidae582024-26%1974
Canada GooseAnatidae51202126×2018
Acorn WoodpeckerPicidae372024-21%1974
Cliff SwallowHirundinidae372024-75%1974
Common RavenCorvidae292024+825%1984
Red-winged BlackbirdIcteridae242024-66%1974
Eurasian Collared-DoveColumbidae242024+146%2015
House FinchFringillidae232024-73%1974
California QuailOdontophoridae222024-41%1974
European StarlingSturnidae202024-90%1974
Chestnut-backed ChickadeeParidae181983n/an/a
White-breasted NuthatchSittidae132024-76%1982
Western KingbirdTyrannidae122024-36%1974
California Scrub-JayCorvidae122024-46%1974
Lesser GoldfinchFringillidae122024-43%1974
Oak TitmouseParidae122024-54%1974
Brewer's BlackbirdIcteridae112024-97%1974
House SparrowPasseridae112024-69%1975
Yellow-billed MagpieCorvidae102024-69%1974
California TowheePasserellidae102024-44%1974
Wild TurkeyPhasianidae102021+56%2005
American CrowCorvidae92024+10%1974
Northern Rough-winged SwallowHirundinidae92023-6%1974
Rock PigeonColumbidae82024+375%1982
Ash-throated FlycatcherTyrannidae82024+188%1974
Cassin's KingbirdTyrannidae81983+700%1982
Turkey VultureCathartidae72024+95%1974
Red-tailed HawkAccipitridae72024-10%1974
White-throated SwiftApodidae72024+600%1972
Spotted TowheePasserellidae72024-55%1974
Tree SwallowHirundinidae72024+111%1976
Purple MartinHirundinidae72024+114%2016
MallardAnatidae62021+113%1995
Double-crested CormorantPhalacrocoracidae62014n/an/a
Bullock's OrioleIcteridae52023-62%1974
Brown-headed CowbirdIcteridae52024-22%1975
Lark SparrowPasserellidae42024-10%1974
BushtitAegithalidae42024-51%1974
Northern MockingbirdMimidae42024+200%1982
Great-tailed GrackleIcteridae42021n/an/a

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