BirdAnalyst
BBS Route · California · BCR 9

Benton Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 30 survey years, still active.

95Species 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 →
30Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2025Span
9Observers

Bird Species Found on California Benton

Top 40 of 95 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
American AvocetRecurvirostridae28202511×1976
Brewer's BlackbirdIcteridae222025+39%1975
Black-throated SparrowPasserellidae202025-9%1986
Sage ThrasherMimidae192025+130%1975
Brewer's SparrowPasserellidae162025-25%1975
GadwallAnatidae162025+763%2016
Common RavenCorvidae142025+100%1977
House FinchFringillidae122025+155%1979
Mourning DoveColumbidae112025-2%1975
Ruddy DuckAnatidae112025+108%1976
Eared GrebePodicipedidae102025+932%1978
Pinyon JayCorvidae92025+100%1977
California GullLaridae82024+8%1977
Green-tailed TowheePasserellidae72025+118%1975
Horned LarkAlaudidae52025-62%1975
Western MeadowlarkIcteridae52025+0%1975
American CrowCorvidae51983+25%1975
WilletScolopacidae52024+0%2004
Loggerhead ShrikeLaniidae52025-30%2004
House SparrowPasseridae42003-24%1975
Rock WrenTroglodytidae42024+18%1978
Wilson's PhalaropeScolopacidae42016+11%2004
Clark's NutcrackerCorvidae42024+100%1982
American WigeonAnatidae42025+300%2015
Mountain ChickadeeParidae32015+100%1978
Spotted TowheePasserellidae32025+0%2004
Eurasian Collared-DoveColumbidae32025+50%2015
Lazuli BuntingCardinalidae32024+33%2018
Common NighthawkCaprimulgidae22022-10%1975
Ash-throated FlycatcherTyrannidae22025+67%2015
American RobinTurdidae22021+33%1975
MallardAnatidae22024-50%2014
Cinnamon TealAnatidae22023+22%1978
Say's PhoebeTyrannidae22025+167%1988
Blue-winged TealAnatidae22023+100%1975
Bullock's OrioleIcteridae22025+20%1988
Cassin's FinchFringillidae21979+0%1978
RedheadAnatidae22024+75%2018
Cliff SwallowHirundinidae22021+100%1982
Northern House WrenTroglodytidae22024+100%2017

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.