BirdAnalyst
BBS Route · California · BCR 33

Ft Irwin Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 25 species recorded across 7 survey years, no longer active.

25Species 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 →
7Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1975–1982Span
1Observers

Bird Species Found on California Ft Irwin

Top 25 of 25 species by most recent count. Each links to its species trend.

Species recorded on the Ft Irwin 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
Horned LarkAlaudidae201982-36%1978
House SparrowPasseridae191982+264%1977
House FinchFringillidae111978+450%1975
Black-throated SparrowPasserellidae61982-28%1978
Brewer's BlackbirdIcteridae51975n/an/a
ChukarPhasianidae51979n/an/a
Common RavenCorvidae41982+36%1978
Bell's SparrowPasserellidae31981-63%1978
Red-tailed HawkAccipitridae21981+33%1978
Lark SparrowPasserellidae21975n/an/a
Black PhoebeTyrannidae21977n/an/a
American GoldfinchFringillidae21977n/an/a
Northern MockingbirdMimidae21977n/an/a
European StarlingSturnidae11982-43%1977
LeConte's ThrasherMimidae11980-71%1977
Mourning DoveColumbidae11981-50%1979
American KestrelFalconidae11978+0%1977
Costa's HummingbirdTrochilidae11977n/an/a
Rock WrenTroglodytidae11977n/an/a
VerdinRemizidae11977n/an/a
Burrowing OwlStrigidae11978n/an/a
Western MeadowlarkIcteridae11979n/an/a
Turkey VultureCathartidae11981n/an/a
Northern Rough-winged SwallowHirundinidae11982n/an/a
Bendire's ThrasherMimidae11982n/an/a

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