BirdAnalyst
BBS Route · California · BCR 32

Maricopa Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 51 species recorded across 24 survey years, still active.

51Species 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 →
24Years 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
5Observers

Bird Species Found on California Maricopa

Top 40 of 51 species by most recent count. Each links to its species trend.

Species recorded on the Maricopa 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
House SparrowPasseridae252024-42%1972
Northern MockingbirdMimidae252024+162%1972
Common RavenCorvidae212024+483%1977
Mourning DoveColumbidae202024-19%1972
Cliff SwallowHirundinidae202024-90%1973
Western MeadowlarkIcteridae182024+230%1972
Tricolored BlackbirdIcteridae151995+400%1986
House FinchFringillidae102024-66%1972
Lark SparrowPasserellidae92024-13%1987
Horned LarkAlaudidae82024-90%1972
European StarlingSturnidae72024+55%1972
Loggerhead ShrikeLaniidae62024-37%1972
Lesser GoldfinchFringillidae62024+200%1987
California QuailOdontophoridae52024+9%1972
Red-winged BlackbirdIcteridae52024-88%1982
Yellow-headed BlackbirdIcteridae41977n/an/a
Bell's SparrowPasserellidae32024-38%1972
American CrowCorvidae32024+200%1981
American AvocetRecurvirostridae31990n/an/a
KilldeerCharadriidae22024-29%1973
Greater RoadrunnerCuculidae21993-17%1972
Lesser NighthawkCaprimulgidae22024-40%1979
Brewer's BlackbirdIcteridae22024-41%1972
LeConte's ThrasherMimidae22024-94%1972
Red-tailed HawkAccipitridae22024+25%1977
Rock WrenTroglodytidae22024-56%1982
Barn SwallowHirundinidae22024+250%1988
Northern Rough-winged SwallowHirundinidae22024-50%1988
Black-necked StiltRecurvirostridae21990-80%1988
MallardAnatidae21994n/an/a
Turkey VultureCathartidae22024n/an/a
Rock PigeonColumbidae11997+50%1977
American KestrelFalconidae11970n/an/a
Western KingbirdTyrannidae12024+0%1972
Say's PhoebeTyrannidae12024-46%1972
Bullock's OrioleIcteridae12024-64%1972
Swainson's ThrushTurdidae11970n/an/a
Chipping SparrowPasserellidae11971n/an/a
Anna's HummingbirdTrochilidae11972n/an/a
Wilson's WarblerParulidae11972n/an/a

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