BBS Route · Arizona · BCR 33

Palo Verde 2 Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 76 species recorded across 10 survey years, still active.

Bird Species Found on Arizona Palo Verde 2

Top 40 of 76 species by most recent count. Each links to its species trend.

Species recorded on the Palo Verde 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
Red-winged BlackbirdIcteridae1292024-46%2016
White-winged DoveColumbidae732024+13%2016
Mourning DoveColumbidae392024-43%2016
Neotropic CormorantPhalacrocoracidae36202413×2022
Gambel's QuailOdontophoridae322024+4%2016
Great-tailed GrackleIcteridae262024-25%2016
KilldeerCharadriidae212024+13%2016
Ash-throated FlycatcherTyrannidae202024+26%2016
Northern Rough-winged SwallowHirundinidae192024+17%2016
European StarlingSturnidae182024-10%2016
Eurasian Collared-DoveColumbidae172024-43%2016
Horned LarkAlaudidae152024+118%2016
House SparrowPasseridae142024+12%2016
Western KingbirdTyrannidae132024-11%2016
Great Blue HeronArdeidae102024+18%2016
House FinchFringillidae92024+31%2016
MallardAnatidae62023+50%2016
Black-necked StiltRecurvirostridae62024+117%2016
Gila WoodpeckerPicidae52024+33%2016
Brown-headed CowbirdIcteridae52024+24%2016
Black-crowned Night HeronArdeidae52023+100%2016
American CootRallidae52023+400%2021
Bullock's OrioleIcteridae42024+10%2016
Yellow WarblerParulidae42024+33%2016
Cactus WrenTroglodytidae42024+0%2017
Black VultureCathartidae42023-20%2017
Rock PigeonColumbidae42023+200%2019
Great EgretArdeidae32022+120%2018
Red-tailed HawkAccipitridae32024+0%2016
Abert's TowheePasserellidae32024+160%2017
Cliff SwallowHirundinidae32024-89%2016
Northern MockingbirdMimidae32024-56%2016
VerdinRemizidae32024-73%2016
Common RavenCorvidae32024+0%2017
Lesser GoldfinchFringillidae32015n/an/a
Western Cattle-EgretArdeidae32022+71%2019
Snowy EgretArdeidae32024-80%2022
Lesser NighthawkCaprimulgidae22023+79%2016
Black-chinned HummingbirdTrochilidae22017+100%2014
Black PhoebeTyrannidae22023+300%2016

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