BirdAnalyst
BBS Route · Arizona · BCR 33

Ajo 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 61 species recorded across 13 survey years, no longer active.

61Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
2009–2022Span
5Observers

Bird Species Found on Arizona Ajo 2

Top 40 of 61 species by most recent count. Each links to its species trend.

Species recorded on the Ajo 2 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 DoveColumbidae582022-40%2011
Mourning DoveColumbidae522022-23%2011
Northern MockingbirdMimidae452019+38%2011
House FinchFringillidae342022+28%2011
Turkey VultureCathartidae282022+74%2011
House SparrowPasseridae212022-34%2011
Brown-crested FlycatcherTyrannidae192022+169%2012
Common RavenCorvidae172022-2%2011
Great-tailed GrackleIcteridae112022+44%2012
Gambel's QuailOdontophoridae102022-17%2011
Ash-throated FlycatcherTyrannidae102022-38%2011
VerdinRemizidae102022-75%2011
Gila WoodpeckerPicidae92022+33%2011
Black-throated SparrowPasserellidae82022-53%2011
Barn SwallowHirundinidae82013n/an/a
Greater RoadrunnerCuculidae72019+225%2014
Ladder-backed WoodpeckerPicidae72019+300%2011
Eurasian Collared-DoveColumbidae72022-29%2011
Bullock's OrioleIcteridae72019+600%2011
White-throated SwiftApodidae62022+117%2015
PhainopeplaPtiliogonatidae52022-64%2011
Rock WrenTroglodytidae52019+133%2011
Common Ground DoveColumbidae42019+150%2010
KilldeerCharadriidae42019+75%2013
Great Horned OwlStrigidae42019+100%2012
Lesser GoldfinchFringillidae42018-38%2013
Rock PigeonColumbidae32021-33%2011
Red-tailed HawkAccipitridae32022+67%2011
Lesser NighthawkCaprimulgidae32022-34%2011
Say's PhoebeTyrannidae32022+25%2011
Lucy's WarblerParulidae32021-17%2011
Bell's VireoVireonidae32017+17%2013
European StarlingSturnidae22022+29%2011
Brown-headed CowbirdIcteridae22022-77%2011
Scott's OrioleIcteridae22017-25%2012
Northern Rough-winged SwallowHirundinidae22019+73%2012
Curve-billed ThrasherMimidae22022+0%2011
Harris's HawkAccipitridae22010n/an/a
Costa's HummingbirdTrochilidae22018+167%2011
Snowy EgretArdeidae22019n/an/a

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