BBS Route · California · BCR 33

Trona Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 26 species recorded across 3 survey years, still active.

26Species Recorded
3Years Surveyed
19771997Span
2Observers

Bird Species Found on California Trona

Top 26 of 26 species by most recent count. Each links to its species trend.

Species recorded on the Trona route.
History
House SparrowPasseridae571997+14%1977
Brown-headed CowbirdIcteridae271977n/an/a
Mourning DoveColumbidae261997+767%1977
Common RavenCorvidae251997+127%1977
European StarlingSturnidae101997+25%1977
Say's PhoebeTyrannidae91997+800%1977
Rock PigeonColumbidae81997n/an/a
House FinchFringillidae71997-42%1977
Horned LarkAlaudidae51997-85%1977
White-throated SwiftApodidae31997n/an/a
Prairie FalconFalconidae21995n/an/a
Western KingbirdTyrannidae21997-33%1995
Yellow-headed BlackbirdIcteridae21995n/an/a
American AvocetRecurvirostridae21997n/an/a
Golden EagleAccipitridae11977n/an/a
Scott's OrioleIcteridae11977n/an/a
Bullock's OrioleIcteridae11997-50%1977
Black-throated SparrowPasserellidae11997-98%1977
Loggerhead ShrikeLaniidae11995-67%1977
Rock WrenTroglodytidae11997+0%1977
ChukarPhasianidae11995n/an/a
Cliff SwallowHirundinidae11995n/an/a
Barn SwallowHirundinidae11997-50%1995
Northern Rough-winged SwallowHirundinidae11995n/an/a
Red-tailed HawkAccipitridae11997n/an/a
Northern MockingbirdMimidae11997n/an/a

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