BirdAnalyst
BBS Route · California · BCR 33

Glamis Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 54 species recorded across 13 survey years, still active.

54Species 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 →
13Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2018Span
5Observers

Bird Species Found on California Glamis

Top 40 of 54 species by most recent count. Each links to its species trend.

Species recorded on the Glamis 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 DoveColumbidae1022018+19%1970
White-winged DoveColumbidae732018+427%1970
Ash-throated FlycatcherTyrannidae42201822×1970
Cliff SwallowHirundinidae212018+175%1995
House FinchFringillidae192018+300%1973
Costa's HummingbirdTrochilidae181995+850%1972
Black-tailed GnatcatcherPolioptilidae152018+833%1973
VerdinRemizidae142018+76%1970
Western KingbirdTyrannidae102018+271%1973
Cactus WrenTroglodytidae92018+233%1970
Northern Rough-winged SwallowHirundinidae92018+300%1974
Bullock's OrioleIcteridae91995+350%1976
White-throated SwiftApodidae52018+400%1974
Common YellowthroatParulidae41977+100%1975
Red-winged BlackbirdIcteridae42018-92%1976
Brewer's BlackbirdIcteridae42017n/an/a
Great-tailed GrackleIcteridae42018n/an/a
Gambel's QuailOdontophoridae32018+643%1971
House SparrowPasseridae31974+200%1973
Western TanagerCardinalidae31976n/an/a
Western MeadowlarkIcteridae31995n/an/a
Abert's TowheePasserellidae22017+0%1974
Red-tailed HawkAccipitridae22018-40%1971
European StarlingSturnidae21977+0%1970
Swainson's HawkAccipitridae21974n/an/a
Black PhoebeTyrannidae22018+100%1974
Turkey VultureCathartidae22018+100%1977
Common Ground DoveColumbidae22017+100%1977
Blue GrosbeakCardinalidae21977n/an/a
Yellow-breasted ChatIcteriidae21977n/an/a
Black-throated SparrowPasserellidae22018-91%1995
Crissal ThrasherMimidae21995n/an/a
Rock WrenTroglodytidae21995n/an/a
Northern HarrierAccipitridae11968n/an/a
Burrowing OwlStrigidae11968n/an/a
Greater RoadrunnerCuculidae12017+50%1977
Lesser NighthawkCaprimulgidae12017+233%1970
Say's PhoebeTyrannidae12018+50%1995
Barn SwallowHirundinidae12017-55%1972
Loggerhead ShrikeLaniidae12018-81%1970

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