BirdAnalyst
BBS Route · California · BCR 32

Moreno Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 25 survey years, still active.

103Species 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 →
25Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2024Span
6Observers

Bird Species Found on California Moreno

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Moreno 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
Rock PigeonColumbidae1902024+822%1970
House SparrowPasseridae1102024+43%1970
House FinchFringillidae1052024-23%1970
Common RavenCorvidae1042024+212%1972
European StarlingSturnidae1022024+73%1970
Tricolored BlackbirdIcteridae862017-37%1974
American CrowCorvidae502024+94%1972
Northern MockingbirdMimidae412024+769%1970
Cliff SwallowHirundinidae352024+44%1975
Brewer's BlackbirdIcteridae302024-93%1970
Eurasian Collared-DoveColumbidae302024+18%2019
Cassin's KingbirdTyrannidae26202419×1985
Mourning DoveColumbidae252024-41%1970
Lesser GoldfinchFringillidae252024+544%1976
Barn SwallowHirundinidae232024+180%2012
Anna's HummingbirdTrochilidae19202415×1975
Red-winged BlackbirdIcteridae172024+175%1970
California TowheePasserellidae172024+500%1974
Western MeadowlarkIcteridae152024-75%1970
Canada GooseAnatidae152024+650%2021
Western KingbirdTyrannidae122024+68%1970
Black PhoebeTyrannidae122024+278%2012
Red-tailed HawkAccipitridae112024+147%1970
American KestrelFalconidae112024-14%1970
Rufous-crowned SparrowPasserellidae112024+360%2019
Song SparrowPasserellidae102024+560%1977
Hooded OrioleIcteridae102024+11%2019
BushtitAegithalidae102024+32%2019
Band-tailed PigeonColumbidae92019+125%1974
Black-necked StiltRecurvirostridae72018+143%1985
American AvocetRecurvirostridae71986n/an/a
Great-tailed GrackleIcteridae72024+33%2019
Spotted TowheePasserellidae62024+250%2017
MallardAnatidae62024+214%1975
Say's PhoebeTyrannidae62024+140%2017
Common YellowthroatParulidae62024+171%2017
White-faced IbisThreskiornithidae52022+150%2017
Black-crowned Night HeronArdeidae52024+400%2017
Northern HarrierAccipitridae41986-22%1970
Burrowing OwlStrigidae42012+17%1974

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