BirdAnalyst
BBS Route · California · BCR 33

Niland Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 92 species recorded across 49 survey years, still active.

92Species 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 →
49Years 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
4Observers

Bird Species Found on California Niland

Top 40 of 92 species by most recent count. Each links to its species trend.

Species recorded on the Niland 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 BlackbirdIcteridae3612024+15%1976
White-faced IbisThreskiornithidae1852024+150%1985
Western MeadowlarkIcteridae922024+439%1976
Ruddy DuckAnatidae652021-73%1980
Mourning DoveColumbidae402024-7%1976
RedheadAnatidae302010-5%2005
Black PhoebeTyrannidae28202423×1983
Wood StorkCiconiidae271976n/an/a
Great-tailed GrackleIcteridae262024+308%1984
Blue-footed BoobySulidae191974n/an/a
Gambel's QuailOdontophoridae192024+300%1982
European StarlingSturnidae182024+94%1976
Cliff SwallowHirundinidae172024+226%1977
Rock PigeonColumbidae142024+205%1983
Barn SwallowHirundinidae142023-66%2018
White-winged DoveColumbidae122024+750%1987
Great EgretArdeidae112024-61%1976
KilldeerCharadriidae112024-29%1976
Burrowing OwlStrigidae112024-3%1976
Song SparrowPasserellidae112024+600%1984
Lesser NighthawkCaprimulgidae102022+144%1976
Northern Rough-winged SwallowHirundinidae102024-86%1976
American KestrelFalconidae102024+350%1979
Abert's TowheePasserellidae102024+225%1982
Western Cattle-EgretArdeidae92023+124%1976
Western KingbirdTyrannidae92024+13%1976
Eurasian Collared-DoveColumbidae92024+164%2007
Ring-necked PheasantPhasianidae82023+129%1993
House SparrowPasseridae72024-97%1976
American AvocetRecurvirostridae62022-23%1976
Common YellowthroatParulidae62024+47%1976
VerdinRemizidae62024-18%1979
Black-throated SparrowPasserellidae51974n/an/a
Horned LarkAlaudidae52024-73%1980
Common RavenCorvidae52023+433%2013
Northern PintailAnatidae42019-52%1980
Great Blue HeronArdeidae42024+20%1981
Double-crested CormorantPhalacrocoracidae42024-83%1981
Cinnamon TealAnatidae42019-42%1986
Black-headed GrosbeakCardinalidae42023+167%2009

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