BirdAnalyst
BBS Route · California · BCR 32

Livermore Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 71 species recorded across 20 survey years, no longer active.

71Species 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 →
20Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1972–1991Span
3Observers

Bird Species Found on California Livermore

Top 40 of 71 species by most recent count. Each links to its species trend.

Species recorded on the Livermore 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
European StarlingSturnidae1741991+474%1974
Brewer's BlackbirdIcteridae1481991-55%1974
Red-winged BlackbirdIcteridae1461991+420%1974
Cliff SwallowHirundinidae1331991-40%1974
Rock PigeonColumbidae129199130×1974
House FinchFringillidae891991-43%1974
House SparrowPasseridae831991-32%1974
Ring-billed GullLaridae501991n/an/a
American CrowCorvidae401991+978%1977
Western MeadowlarkIcteridae311991-56%1974
Northern MockingbirdMimidae171991-44%1974
Western KingbirdTyrannidae151991+20%1974
California Scrub-JayCorvidae111991-46%1974
Red-tailed HawkAccipitridae91991+325%1974
Mourning DoveColumbidae71991-55%1974
Barn SwallowHirundinidae71991-79%1974
Turkey VultureCathartidae51991-33%1974
Bullock's OrioleIcteridae51991-63%1974
Ring-necked PheasantPhasianidae51985-8%1975
American KestrelFalconidae41991-36%1974
California TowheePasserellidae41991-20%1980
American RobinTurdidae41991+75%1976
Lesser GoldfinchFringillidae41988-39%1982
KilldeerCharadriidae31991-14%1974
California QuailOdontophoridae31990-66%1974
Brown-headed CowbirdIcteridae31990+100%1985
Western BluebirdTurdidae31991-67%1984
American GoldfinchFringillidae31984+17%1982
American CootRallidae31986n/an/a
Violet-green SwallowHirundinidae31986n/an/a
Horned LarkAlaudidae21989-29%1975
Lark SparrowPasserellidae21989-25%1978
MallardAnatidae21991+50%1978
Oak TitmouseParidae21991-75%1980
PhainopeplaPtiliogonatidae21977n/an/a
American Barn OwlTytonidae21979n/an/a
BushtitAegithalidae21980n/an/a
Great Blue HeronArdeidae21982n/an/a
Black-necked StiltRecurvirostridae21987+0%1984
American AvocetRecurvirostridae21985n/an/a

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