BBS Route · Utah · BCR 9
Delta Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 82 species recorded across 27 survey years, still active.
82Species Recorded
27Years Surveyed
1987–2024Span
5Observers
Bird Species Found on Utah Delta
Top 40 of 82 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| House Sparrow | Passeridae | 607 | 2024 | +62% | 1990 | |
| Horned Lark | Alaudidae | 90 | 2024 | +7% | 1990 | |
| Franklin's Gull | Laridae | 43 | 2004 | +514% | 1997 | |
| European Starling | Sturnidae | 36 | 2024 | +472% | 1990 | |
| Long-billed Curlew | Scolopacidae | 35 | 2021 | +486% | 1993 | |
| Song Sparrow | Passerellidae | 30 | 2004 | 30× | 1990 | |
| American White Pelican | Pelecanidae | 30 | 2015 | n/a | n/a | |
| Sagebrush Sparrow | Passerellidae | 28 | 2024 | +16% | 1995 | |
| Eurasian Collared-Dove | Columbidae | 28 | 2024 | +640% | 2010 | |
| Mourning Dove | Columbidae | 23 | 2024 | -57% | 1990 | |
| Red-winged Blackbird | Icteridae | 22 | 2024 | +123% | 1990 | |
| Barn Swallow | Hirundinidae | 22 | 2024 | -58% | 1990 | |
| Western Kingbird | Tyrannidae | 21 | 2024 | +83% | 1990 | |
| Western Meadowlark | Icteridae | 18 | 2024 | -59% | 1990 | |
| Snowy Egret | Ardeidae | 18 | 2005 | +135% | 1994 | |
| Brewer's Sparrow | Passerellidae | 13 | 2024 | +217% | 1990 | |
| Bullock's Oriole | Icteridae | 12 | 2024 | +600% | 1992 | |
| Black-billed Magpie | Corvidae | 11 | 2024 | -15% | 1990 | |
| Common Raven | Corvidae | 11 | 2024 | +180% | 1991 | |
| Cliff Swallow | Hirundinidae | 11 | 2023 | -75% | 2000 | |
| House Finch | Fringillidae | 11 | 2023 | +367% | 2000 | |
| White-faced Ibis | Threskiornithidae | 10 | 2010 | -90% | 1990 | |
| Common Nighthawk | Caprimulgidae | 10 | 2024 | +93% | 1990 | |
| Brown-headed Cowbird | Icteridae | 10 | 2024 | -89% | 1990 | |
| American Robin | Turdidae | 8 | 2024 | +100% | 1993 | |
| Killdeer | Charadriidae | 7 | 2024 | -74% | 1990 | |
| Sage Thrasher | Mimidae | 7 | 2024 | -50% | 1993 | |
| Northern Rough-winged Swallow | Hirundinidae | 7 | 2021 | +260% | 1995 | |
| Mallard | Anatidae | 6 | 2017 | +0% | 1990 | |
| Ring-necked Pheasant | Phasianidae | 6 | 2024 | -92% | 1990 | |
| Brewer's Blackbird | Icteridae | 6 | 2024 | -80% | 1990 | |
| Western Cattle-Egret | Ardeidae | 6 | 2005 | +100% | 1994 | |
| Savannah Sparrow | Passerellidae | 5 | 2024 | +20% | 1997 | |
| Northern Mockingbird | Mimidae | 4 | 2024 | +27% | 1990 | |
| Lark Sparrow | Passerellidae | 4 | 2023 | +44% | 1992 | |
| California Quail | Odontophoridae | 4 | 2024 | +100% | 2017 | |
| Yellow-headed Blackbird | Icteridae | 3 | 2024 | -95% | 1990 | |
| Swainson's Hawk | Accipitridae | 3 | 2024 | +14% | 1992 | |
| American Wigeon | Anatidae | 3 | 2005 | +50% | 2000 | |
| Black-crowned Night Heron | Ardeidae | 2 | 2006 | +0% | 1991 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.