BirdAnalyst
BBS Route · California · BCR 32

Moreno Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 26 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 →
26Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2025Span
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 PigeonColumbidae225202511×1970
Red-winged BlackbirdIcteridae1562025+360%1970
House FinchFringillidae1382025-14%1970
House SparrowPasseridae1352025+36%1970
Tricolored BlackbirdIcteridae862017-37%1974
Mourning DoveColumbidae462025-25%1970
Cliff SwallowHirundinidae462025+100%1975
Common RavenCorvidae452025+150%1972
Northern MockingbirdMimidae422025+669%1970
Eurasian Collared-DoveColumbidae412025+19%2019
MallardAnatidae362025+557%1975
American CrowCorvidae352025+103%1972
Western MeadowlarkIcteridae342025-66%1970
European StarlingSturnidae312025+51%1970
California TowheePasserellidae262025+622%1974
Lesser GoldfinchFringillidae262025+611%1976
Anna's HummingbirdTrochilidae22202515×1975
Cassin's KingbirdTyrannidae22202522×1985
Barn SwallowHirundinidae202025+360%2012
Bullock's OrioleIcteridae172025+333%1973
Canada GooseAnatidae152024+650%2021
Brewer's BlackbirdIcteridae142025-93%1970
Song SparrowPasserellidae142025+540%1977
Black PhoebeTyrannidae132025+256%2012
BushtitAegithalidae102025+24%2019
Red-tailed HawkAccipitridae92025+127%1970
Band-tailed PigeonColumbidae92019+125%1974
Hooded OrioleIcteridae92025+15%2019
Say's PhoebeTyrannidae82025+150%2017
Horned LarkAlaudidae72025-82%1974
Northern Rough-winged SwallowHirundinidae72025-91%1977
Black-necked StiltRecurvirostridae72018+143%1985
American AvocetRecurvirostridae71986n/an/a
Bewick's WrenTroglodytidae62025+157%2017
Costa's HummingbirdTrochilidae62025+567%1985
Great-tailed GrackleIcteridae62025+58%2019
American KestrelFalconidae52025-9%1970
Spotted TowheePasserellidae52025+300%2017
Blue GrosbeakCardinalidae52025+140%2017
White-faced IbisThreskiornithidae52022+150%2017

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