BirdAnalyst
BBS Route · Arizona · BCR 33

Casa Grande Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 89 species recorded across 33 survey years, no longer active.

89Species 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 →
33Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1989–2023Span
3Observers

Bird Species Found on Arizona Casa Grande

Top 40 of 89 species by most recent count. Each links to its species trend.

Species recorded on the Casa Grande 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
Black VultureCathartidae812022+352%2015
Red-winged BlackbirdIcteridae662023+600%1993
Gambel's QuailOdontophoridae522023-52%1991
Great-tailed GrackleIcteridae432023+185%1991
House FinchFringillidae402023+44%1991
Cliff SwallowHirundinidae36202353×1993
Mourning DoveColumbidae272023-10%1991
Black-throated SparrowPasserellidae232022+18%1992
Ash-throated FlycatcherTyrannidae182023+67%1991
Turkey VultureCathartidae182022+217%1994
Gilded FlickerPicidae162022+17%1991
Brown-crested FlycatcherTyrannidae152022-72%1991
Horned LarkAlaudidae142023+96%1991
Abert's TowheePasserellidae102023-5%1991
Black-tailed GnatcatcherPolioptilidae102022+55%1991
White-winged DoveColumbidae82023-10%1991
Canyon TowheePasserellidae82022+86%1991
Brewer's BlackbirdIcteridae61991n/an/a
Northern CardinalCardinalidae52022-63%1991
PhainopeplaPtiliogonatidae52023-50%1991
House SparrowPasseridae52023-94%1991
Bullock's OrioleIcteridae52021+33%1994
Harris's HawkAccipitridae52022+83%1996
Great Horned OwlStrigidae42023-6%1991
Western KingbirdTyrannidae42023-50%1991
European StarlingSturnidae42021-22%1991
Bronzed CowbirdIcteridae42009-46%1991
Curve-billed ThrasherMimidae42023-52%1991
Canyon WrenTroglodytidae42021+75%1992
American KestrelFalconidae42022-20%1995
Eurasian Collared-DoveColumbidae42023-20%2011
Bell's VireoVireonidae32023+27%1991
Lucy's WarblerParulidae32023-47%1991
Northern MockingbirdMimidae32022-88%1991
PyrrhuloxiaCardinalidae32018-46%1996
Cinnamon TealAnatidae32018n/an/a
Great EgretArdeidae32019+200%2018
KilldeerCharadriidae22023+83%1992
Ladder-backed WoodpeckerPicidae22022+50%1991
Gila WoodpeckerPicidae22023-40%1991

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