BirdAnalyst
BBS Route · California · BCR 9

Benton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 93 species recorded across 29 survey years, still active.

93Species 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 →
29Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2024Span
9Observers

Bird Species Found on California Benton

Top 40 of 93 species by most recent count. Each links to its species trend.

Species recorded on the Benton 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
Eared GrebePodicipedidae123202415×1978
Sage ThrasherMimidae622024+134%1975
American AvocetRecurvirostridae38202416×1976
GadwallAnatidae382024+625%2016
Brewer's SparrowPasserellidae302024-12%1975
Black-throated SparrowPasserellidae202024-4%1986
Mourning DoveColumbidae162024+20%1975
Western MeadowlarkIcteridae162024+0%1975
Green-tailed TowheePasserellidae132024+124%1975
Pinyon JayCorvidae132024+287%1977
Common RavenCorvidae112024+39%1977
Red-winged BlackbirdIcteridae102024+33%1976
Ruddy DuckAnatidae102024+131%1976
American CootRallidae82024+295%1976
California GullLaridae82024+8%1977
Yellow-headed BlackbirdIcteridae72023+5%1975
House FinchFringillidae72024+155%1979
American CrowCorvidae51983+25%1975
WilletScolopacidae52024+0%2004
House SparrowPasseridae42003-24%1975
Gray FlycatcherTyrannidae42024+60%1982
Rock WrenTroglodytidae42024+18%1978
Wilson's PhalaropeScolopacidae42016+11%2004
Clark's NutcrackerCorvidae42024+100%1982
Spotted TowheePasserellidae42024-13%2004
Horned LarkAlaudidae32024-65%1975
Say's PhoebeTyrannidae32024+133%1988
Mountain ChickadeeParidae32015+100%1978
Lazuli BuntingCardinalidae32024+33%2018
Common NighthawkCaprimulgidae22022-10%1975
Blue-gray GnatcatcherPolioptilidae22024+20%1976
American RobinTurdidae22021+33%1975
MallardAnatidae22024-50%2014
Cinnamon TealAnatidae22023+22%1978
Blue-winged TealAnatidae22023+100%1975
California QuailOdontophoridae22023-47%1977
Northern PintailAnatidae22024+100%2015
Bullock's OrioleIcteridae22024+20%1988
Cassin's FinchFringillidae21979+0%1978
RedheadAnatidae22024-33%1979

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