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
1977–1997Span
2Observers
Bird Species Found on California Trona
Top 26 of 26 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| House Sparrow | Passeridae | 57 | 1997 | +14% | 1977 | |
| Brown-headed Cowbird | Icteridae | 27 | 1977 | n/a | n/a | |
| Mourning Dove | Columbidae | 26 | 1997 | +767% | 1977 | |
| Common Raven | Corvidae | 25 | 1997 | +127% | 1977 | |
| European Starling | Sturnidae | 10 | 1997 | +25% | 1977 | |
| Say's Phoebe | Tyrannidae | 9 | 1997 | +800% | 1977 | |
| Rock Pigeon | Columbidae | 8 | 1997 | n/a | n/a | |
| House Finch | Fringillidae | 7 | 1997 | -42% | 1977 | |
| Horned Lark | Alaudidae | 5 | 1997 | -85% | 1977 | |
| White-throated Swift | Apodidae | 3 | 1997 | n/a | n/a | |
| Prairie Falcon | Falconidae | 2 | 1995 | n/a | n/a | |
| Western Kingbird | Tyrannidae | 2 | 1997 | -33% | 1995 | |
| Yellow-headed Blackbird | Icteridae | 2 | 1995 | n/a | n/a | |
| American Avocet | Recurvirostridae | 2 | 1997 | n/a | n/a | |
| Golden Eagle | Accipitridae | 1 | 1977 | n/a | n/a | |
| Scott's Oriole | Icteridae | 1 | 1977 | n/a | n/a | |
| Bullock's Oriole | Icteridae | 1 | 1997 | -50% | 1977 | |
| Black-throated Sparrow | Passerellidae | 1 | 1997 | -98% | 1977 | |
| Loggerhead Shrike | Laniidae | 1 | 1995 | -67% | 1977 | |
| Rock Wren | Troglodytidae | 1 | 1997 | +0% | 1977 | |
| Chukar | Phasianidae | 1 | 1995 | n/a | n/a | |
| Cliff Swallow | Hirundinidae | 1 | 1995 | n/a | n/a | |
| Barn Swallow | Hirundinidae | 1 | 1997 | -50% | 1995 | |
| Northern Rough-winged Swallow | Hirundinidae | 1 | 1995 | n/a | n/a | |
| Red-tailed Hawk | Accipitridae | 1 | 1997 | n/a | n/a | |
| Northern Mockingbird | Mimidae | 1 | 1997 | n/a | n/a |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.