BirdAnalyst
BBS Route · Arizona · BCR 33

Ajo Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 70 species recorded across 15 survey years, no longer active.

70Species 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 →
1968–2008Span
8Observers

Bird Species Found on Arizona Ajo

Top 40 of 70 species by most recent count. Each links to its species trend.

Species recorded on the Ajo 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
White-winged DoveColumbidae562008-49%1970
Mourning DoveColumbidae462008+56%1970
Black-throated SparrowPasserellidae292008-56%1970
Ash-throated FlycatcherTyrannidae262008+75%1970
VerdinRemizidae202008-57%1970
Gambel's QuailOdontophoridae162008-45%1970
Brown-headed CowbirdIcteridae162001+146%1970
Turkey VultureCathartidae152008+132%1976
Rock PigeonColumbidae152008+91%2006
Common RavenCorvidae122008+156%1976
House SparrowPasseridae122008-72%1970
Bronzed CowbirdIcteridae82001-10%1969
Northern CardinalCardinalidae82001+25%1976
PhainopeplaPtiliogonatidae82008-12%1970
Chihuahuan RavenCorvidae81970n/an/a
Gila WoodpeckerPicidae72008-40%1970
Gilded FlickerPicidae72001-36%1970
Black-tailed GnatcatcherPolioptilidae72008-82%1970
House FinchFringillidae62007-73%1970
KilldeerCharadriidae62000n/an/a
Western KingbirdTyrannidae42001+0%1979
Canyon TowheePasserellidae32006-55%1994
Bell's VireoVireonidae32001+100%1970
Lucy's WarblerParulidae32006+126%1970
Common PoorwillCaprimulgidae32001+0%1995
White-throated SwiftApodidae32001+50%1976
Horned LarkAlaudidae31979n/an/a
Cinnamon TealAnatidae32000n/an/a
Spotted SandpiperScolopacidae32001n/an/a
Ladder-backed WoodpeckerPicidae22008-25%1970
Brown-crested FlycatcherTyrannidae22008-50%1970
Great-tailed GrackleIcteridae22008-52%1976
Curve-billed ThrasherMimidae22008-77%1970
Canyon WrenTroglodytidae22008+0%1979
American KestrelFalconidae21979+0%1970
Bullock's OrioleIcteridae22000n/an/a
Northern Rough-winged SwallowHirundinidae22006+0%2000
Crissal ThrasherMimidae22001+0%2000
Snowy EgretArdeidae22001n/an/a
Greater RoadrunnerCuculidae12008-60%1979

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