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BBS Route · California · BCR 32

Santa Cruz I Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 31 species recorded across 1 survey years, no longer active.

31Species 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 →
1Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1988–1988Span
1Observers

Bird Species Found on California Santa Cruz I

Top 31 of 31 species by most recent count. Each links to its species trend.

Species recorded on the Santa Cruz I 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
House FinchFringillidae1291988n/an/a
Spotted TowheePasserellidae1221988n/an/a
European StarlingSturnidae951988n/an/a
Bewick's WrenTroglodytidae771988n/an/a
Chipping SparrowPasserellidae571988n/an/a
Western MeadowlarkIcteridae541988n/an/a
Mourning DoveColumbidae481988n/an/a
Orange-crowned WarblerParulidae421988n/an/a
Island Scrub-JayCorvidae331988n/an/a
Song SparrowPasserellidae301988n/an/a
California QuailOdontophoridae271988n/an/a
Western GullLaridae201988n/an/a
Horned LarkAlaudidae181988n/an/a
Rufous-crowned SparrowPasserellidae181988n/an/a
Common RavenCorvidae131988n/an/a
Black-headed GrosbeakCardinalidae111988n/an/a
Acorn WoodpeckerPicidae71988n/an/a
Ash-throated FlycatcherTyrannidae71988n/an/a
Lesser GoldfinchFringillidae71988n/an/a
Hutton's VireoVireonidae71988n/an/a
Allen's HummingbirdTrochilidae61988n/an/a
Northern MockingbirdMimidae51988n/an/a
Black PhoebeTyrannidae41988n/an/a
American KestrelFalconidae21988n/an/a
Anna's HummingbirdTrochilidae21988n/an/a
Grasshopper SparrowPasserellidae21988n/an/a
Barn SwallowHirundinidae21988n/an/a
Loggerhead ShrikeLaniidae21988n/an/a
Rock WrenTroglodytidae21988n/an/a
Blue-gray GnatcatcherPolioptilidae21988n/an/a
White-throated SwiftApodidae11988n/an/a

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