BBS Route · Colorado · BCR 16
Dolores Riv Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 106 species recorded across 34 survey years, still active.
106Species Recorded
34Years Surveyed
1988–2024Span
3Observers
Bird Species Found on Colorado Dolores Riv
Top 40 of 106 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| American Robin | Turdidae | 114 | 2024 | -4% | 1992 | |
| Warbling Vireo | Vireonidae | 76 | 2024 | +8% | 1992 | |
| Violet-green Swallow | Hirundinidae | 59 | 2024 | -36% | 1992 | |
| Western Tanager | Cardinalidae | 40 | 2024 | +52% | 1992 | |
| Ruby-crowned Kinglet | Regulidae | 40 | 2024 | +120% | 1992 | |
| Western Wood-Pewee | Tyrannidae | 19 | 2024 | -73% | 1992 | |
| Pine Siskin | Fringillidae | 18 | 2024 | -85% | 1992 | |
| Broad-tailed Hummingbird | Trochilidae | 15 | 2024 | -24% | 1992 | |
| Hermit Thrush | Turdidae | 14 | 2024 | -4% | 1992 | |
| Lincoln's Sparrow | Passerellidae | 10 | 2024 | +100% | 1993 | |
| Orange-crowned Warbler | Parulidae | 10 | 2024 | -23% | 1995 | |
| MacGillivray's Warbler | Parulidae | 10 | 2024 | +267% | 1992 | |
| American Goldfinch | Fringillidae | 10 | 2017 | +900% | 2012 | |
| White-crowned Sparrow | Passerellidae | 8 | 2024 | -81% | 1992 | |
| Song Sparrow | Passerellidae | 8 | 2024 | +31% | 1992 | |
| Hammond's Flycatcher | Tyrannidae | 8 | 2024 | -20% | 1995 | |
| Dusky Flycatcher | Tyrannidae | 6 | 2024 | +300% | 1997 | |
| Black-billed Magpie | Corvidae | 6 | 2024 | +46% | 1992 | |
| Red-winged Blackbird | Icteridae | 6 | 2023 | -9% | 1994 | |
| Fox Sparrow | Passerellidae | 6 | 2024 | -48% | 1994 | |
| Yellow Warbler | Parulidae | 6 | 2024 | -66% | 1992 | |
| Northern House Wren | Troglodytidae | 6 | 2024 | -35% | 1992 | |
| Mountain Bluebird | Turdidae | 6 | 2024 | +88% | 1995 | |
| Spotted Sandpiper | Scolopacidae | 6 | 2024 | -44% | 1996 | |
| European Starling | Sturnidae | 5 | 2019 | -46% | 1992 | |
| Chipping Sparrow | Passerellidae | 5 | 2024 | -53% | 1992 | |
| Black-headed Grosbeak | Cardinalidae | 5 | 2024 | +0% | 1992 | |
| Tree Swallow | Hirundinidae | 5 | 2024 | -41% | 1996 | |
| Virginia's Warbler | Parulidae | 5 | 2024 | -48% | 1994 | |
| White-throated Swift | Apodidae | 5 | 1995 | n/a | n/a | |
| Blue-gray Gnatcatcher | Polioptilidae | 5 | 1997 | n/a | n/a | |
| Common Raven | Corvidae | 4 | 2024 | +60% | 1993 | |
| Evening Grosbeak | Fringillidae | 4 | 2021 | +0% | 1998 | |
| Mountain Chickadee | Paridae | 4 | 2024 | +150% | 1992 | |
| Golden-crowned Kinglet | Regulidae | 4 | 2004 | +50% | 1992 | |
| Band-tailed Pigeon | Columbidae | 4 | 2002 | -33% | 1998 | |
| Cedar Waxwing | Bombycillidae | 4 | 2005 | +300% | 1999 | |
| Black Swift | Apodidae | 4 | 2015 | n/a | n/a | |
| Red-tailed Hawk | Accipitridae | 3 | 2024 | +40% | 1994 | |
| Olive-sided Flycatcher | Tyrannidae | 3 | 2024 | -52% | 1992 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.