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BBS Route · California · BCR 33

Joshua Tree Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 65 species recorded across 22 survey years, no longer active.

65Species 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 →
22Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1970–2002Span
7Observers

Bird Species Found on California Joshua Tree

Top 40 of 65 species by most recent count. Each links to its species trend.

Species recorded on the Joshua Tree 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
House FinchFringillidae1542002+9%1973
Mourning DoveColumbidae1362002+139%1973
Gambel's QuailOdontophoridae762002+56%1973
House SparrowPasseridae632002+22%1973
Black-throated SparrowPasserellidae252002+1%1973
Cactus WrenTroglodytidae252002+52%1973
Northern MockingbirdMimidae222002+196%1973
Ash-throated FlycatcherTyrannidae162002+64%1974
Scott's OrioleIcteridae112002-29%1973
Bewick's WrenTroglodytidae112000+425%1975
Say's PhoebeTyrannidae92002+41%1974
Common RavenCorvidae72002+55%1974
Great Horned OwlStrigidae61998+50%1974
European StarlingSturnidae62002+58%1973
Brewer's SparrowPasserellidae61991-58%1973
California TowheePasserellidae51997+100%1978
VerdinRemizidae52002+460%1975
Bendire's ThrasherMimidae51988+150%1975
Lazuli BuntingCardinalidae51991n/an/a
California Scrub-JayCorvidae42002+100%1974
Black-chinned HummingbirdTrochilidae42000-14%1996
White-winged DoveColumbidae32000+233%1978
Red-tailed HawkAccipitridae32000+20%1974
Western KingbirdTyrannidae32002+67%1973
Bullock's OrioleIcteridae32000-14%1974
American RobinTurdidae31991n/an/a
Ladder-backed WoodpeckerPicidae22002+20%1973
PhainopeplaPtiliogonatidae22002-38%1974
Prairie FalconFalconidae22002+100%1972
Bell's SparrowPasserellidae21981-88%1972
LeConte's ThrasherMimidae22000-54%1974
Brewer's BlackbirdIcteridae22000+50%1978
Rock PigeonColumbidae22002+96%1988
Nuttall's WoodpeckerPicidae21987n/an/a
Lesser GoldfinchFringillidae21999+0%1996
Spotted TowheePasserellidae21999+50%1994
Lark SparrowPasserellidae21995-67%1991
Rufous-crowned SparrowPasserellidae21997-67%1991
Northern House WrenTroglodytidae21991n/an/a
Oak TitmouseParidae21997+100%1995

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