BirdAnalyst
BBS Route · California · BCR 33

Palo Verde Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 72 species recorded across 20 survey years, still active.

72Species 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 →
20Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2024Span
5Observers

Bird Species Found on California Palo Verde

Top 40 of 72 species by most recent count. Each links to its species trend.

Species recorded on the Palo Verde 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
Red-winged BlackbirdIcteridae5952024-20%1976
Great-tailed GrackleIcteridae93202463×1977
European StarlingSturnidae602024+7%1976
White-faced IbisThreskiornithidae582024-76%2012
White-winged DoveColumbidae342024+6%1976
Horned LarkAlaudidae232024+227%2009
Western KingbirdTyrannidae222024+67%1976
Brown-headed CowbirdIcteridae222024+61%1977
Cliff SwallowHirundinidae202024+448%1976
Barn SwallowHirundinidae182023+867%2009
Northern Rough-winged SwallowHirundinidae162024-38%1976
House SparrowPasseridae162024-91%1976
Mourning DoveColumbidae152024-75%1976
Yellow-headed BlackbirdIcteridae132024-87%1976
Eurasian Collared-DoveColumbidae122024-16%2011
Lesser NighthawkCaprimulgidae112023+143%1977
KilldeerCharadriidae92024+380%1977
House FinchFringillidae92024+120%1976
Common YellowthroatParulidae92024+460%1977
Rock PigeonColumbidae62024+22%2011
Great EgretArdeidae52024+0%1976
Western MeadowlarkIcteridae52023-11%1976
Snowy EgretArdeidae52003+67%1976
PhainopeplaPtiliogonatidae51977n/an/a
Gambel's QuailOdontophoridae42024-6%1976
Northern MockingbirdMimidae42024-43%1976
VerdinRemizidae42024-20%1977
Western Cattle-EgretArdeidae32015-95%1977
Ash-throated FlycatcherTyrannidae32003+200%1977
Turkey VultureCathartidae32023-40%2010
MallardAnatidae32016+50%2014
Northern PintailAnatidae21973n/an/a
Burrowing OwlStrigidae22022-47%1976
Common Ground DoveColumbidae22012-20%1977
Black-crowned Night HeronArdeidae22013+100%1977
Ladder-backed WoodpeckerPicidae22018+100%1977
Lark SparrowPasserellidae22015-25%2010
Song SparrowPasserellidae22024-71%2009
Northern HarrierAccipitridae22021+50%2014
Red-tailed HawkAccipitridae22022+0%2012

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