BBS Route · Colorado · BCR 16
Animas Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 88 species recorded across 8 survey years, no longer active.
88Species Recorded
8Years Surveyed
1996–2004Span
3Observers
Bird Species Found on Colorado Animas
Top 40 of 88 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Common Raven | Corvidae | 51 | 2004 | +173% | 1999 | |
| Cliff Swallow | Hirundinidae | 38 | 2004 | -58% | 1998 | |
| European Starling | Sturnidae | 33 | 2004 | +51% | 1998 | |
| American Robin | Turdidae | 25 | 2004 | -48% | 1998 | |
| Red-winged Blackbird | Icteridae | 21 | 2004 | +50% | 1998 | |
| Black-headed Grosbeak | Cardinalidae | 21 | 2004 | +10% | 1998 | |
| Western Meadowlark | Icteridae | 18 | 2004 | -54% | 1998 | |
| Mourning Dove | Columbidae | 15 | 2004 | +104% | 1998 | |
| Western Wood-Pewee | Tyrannidae | 15 | 2004 | -54% | 1998 | |
| Chipping Sparrow | Passerellidae | 13 | 2004 | -50% | 1998 | |
| Mountain Bluebird | Turdidae | 13 | 2004 | -26% | 1998 | |
| Black-billed Magpie | Corvidae | 12 | 2004 | -46% | 1998 | |
| Brewer's Blackbird | Icteridae | 12 | 2004 | -81% | 1998 | |
| American Crow | Corvidae | 12 | 2004 | +650% | 2000 | |
| Bewick's Wren | Troglodytidae | 11 | 2000 | +26% | 1997 | |
| Blue-gray Gnatcatcher | Polioptilidae | 11 | 2000 | +200% | 1997 | |
| Ash-throated Flycatcher | Tyrannidae | 10 | 2004 | -48% | 1998 | |
| Pinyon Jay | Corvidae | 10 | 2003 | +52% | 1998 | |
| Woodhouse's Scrub-Jay | Corvidae | 9 | 2004 | -29% | 1998 | |
| Canada Goose | Anatidae | 9 | 2003 | +29% | 2002 | |
| Bushtit | Aegithalidae | 8 | 2004 | +200% | 1998 | |
| Brown-headed Cowbird | Icteridae | 7 | 2004 | -54% | 1998 | |
| Gray Vireo | Vireonidae | 7 | 2004 | +467% | 1998 | |
| Cassin's Kingbird | Tyrannidae | 6 | 2004 | -6% | 1998 | |
| Common Grackle | Icteridae | 6 | 2000 | +250% | 1997 | |
| Violet-green Swallow | Hirundinidae | 6 | 2004 | -91% | 1998 | |
| Northern Rough-winged Swallow | Hirundinidae | 6 | 2000 | +167% | 1997 | |
| Yellow Warbler | Parulidae | 6 | 2004 | -69% | 1998 | |
| Gray Flycatcher | Tyrannidae | 5 | 2004 | +8% | 1998 | |
| Western Bluebird | Turdidae | 5 | 2003 | +17% | 2000 | |
| Rock Pigeon | Columbidae | 4 | 2004 | +33% | 1996 | |
| House Finch | Fringillidae | 4 | 2004 | -35% | 1998 | |
| House Sparrow | Passeridae | 4 | 2004 | -76% | 1998 | |
| Juniper Titmouse | Paridae | 4 | 2004 | +40% | 1999 | |
| Red-tailed Hawk | Accipitridae | 3 | 2004 | +14% | 1998 | |
| Bullock's Oriole | Icteridae | 3 | 2003 | -80% | 1998 | |
| Spotted Towhee | Passerellidae | 3 | 2003 | -7% | 1998 | |
| Tree Swallow | Hirundinidae | 3 | 2004 | -17% | 1999 | |
| Northern Mockingbird | Mimidae | 3 | 2003 | -40% | 1996 | |
| Northern House Wren | Troglodytidae | 3 | 2004 | -87% | 1998 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.