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BBS Route · California · BCR 33

Havasu Lake Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 33 species recorded across 3 survey years, still active.

33Species 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 →
3Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1973–2003Span
3Observers

Bird Species Found on California Havasu Lake

Top 33 of 33 species by most recent count. Each links to its species trend.

Species recorded on the Havasu Lake 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
Mourning DoveColumbidae182003-10%1973
Gambel's QuailOdontophoridae172003-23%1973
Lesser NighthawkCaprimulgidae92003+80%1973
Lesser GoldfinchFringillidae92003n/an/a
Northern Rough-winged SwallowHirundinidae92003n/an/a
Loggerhead ShrikeLaniidae81978+33%1973
Cactus WrenTroglodytidae71978+250%1973
Black-tailed GnatcatcherPolioptilidae72003+250%1978
Red-tailed HawkAccipitridae61978n/an/a
Common RavenCorvidae52003+400%1973
Great EgretArdeidae41973n/an/a
Western KingbirdTyrannidae42003+300%1978
Blue GrosbeakCardinalidae31973n/an/a
Northern MockingbirdMimidae32003+0%1973
LeConte's ThrasherMimidae31973n/an/a
Great-tailed GrackleIcteridae32003n/an/a
Turkey VultureCathartidae22003-92%1973
Ash-throated FlycatcherTyrannidae22003-33%1973
Yellow-headed BlackbirdIcteridae22003-67%1973
Red-winged BlackbirdIcteridae22003-50%1973
Abert's TowheePasserellidae22003+100%1973
House SparrowPasseridae22003-71%1973
VerdinRemizidae21973n/an/a
Horned LarkAlaudidae21978n/an/a
White-winged DoveColumbidae11978-83%1973
House FinchFringillidae12003-80%1973
Black-throated SparrowPasserellidae12003-98%1973
Rock WrenTroglodytidae11973n/an/a
KilldeerCharadriidae11978n/an/a
Greater RoadrunnerCuculidae11978n/an/a
MallardAnatidae12003n/an/a
Bullock's OrioleIcteridae12003n/an/a
Common YellowthroatParulidae12003n/an/a

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