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BBS Route · California · BCR 32

Elsinore Mtn Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 95 species recorded across 15 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 →
15Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2024Span
6Observers

Bird Species Found on California Elsinore Mtn

Top 40 of 95 species by most recent count. Each links to its species trend.

Species recorded on the Elsinore Mtn 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 StarlingSturnidae153202413×1972
Spotted TowheePasserellidae1482024+22%1972
WrentitSylviidae1242024-11%1972
Bewick's WrenTroglodytidae662024+84%1972
California Scrub-JayCorvidae552024-16%1972
California TowheePasserellidae522024-5%1972
Cliff SwallowHirundinidae422024+196%1995
California ThrasherMimidae412024-36%1972
Oak TitmouseParidae412024+157%1972
Blue-gray GnatcatcherPolioptilidae412024+200%2017
Anna's HummingbirdTrochilidae392024+285%1972
Acorn WoodpeckerPicidae372024+356%1972
Lesser GoldfinchFringillidae332024-16%1972
Ash-throated FlycatcherTyrannidae322024+30%1972
Lazuli BuntingCardinalidae302024+450%1972
BushtitAegithalidae282024+38%1972
Rufous-crowned SparrowPasserellidae26202425×1972
Black-headed GrosbeakCardinalidae232024+103%1972
American CrowCorvidae212024+33%1972
Costa's HummingbirdTrochilidae192024+74%1972
California QuailOdontophoridae182024-74%1972
Band-tailed PigeonColumbidae182024+117%1973
Black-chinned SparrowPasserellidae162024-78%1972
Northern House WrenTroglodytidae162024-40%1972
House FinchFringillidae142024-46%1972
MallardAnatidae132022+160%1974
Brewer's BlackbirdIcteridae122024+133%1974
Cassin's KingbirdTyrannidae112024+21%2017
Allen's HummingbirdTrochilidae112022+267%2017
Western MeadowlarkIcteridae101995+46%1972
Orange-crowned WarblerParulidae102024+77%1972
Northern MockingbirdMimidae102024+57%1973
Mourning DoveColumbidae92024-18%1972
Nuttall's WoodpeckerPicidae82024+178%1972
PhainopeplaPtiliogonatidae82024+655%1972
White-breasted NuthatchSittidae82024+0%2017
Black-chinned HummingbirdTrochilidae72024+80%1974
Hooded OrioleIcteridae62024+600%1987
Song SparrowPasserellidae62024+100%1972
Common PoorwillCaprimulgidae62022+250%1976

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