BBS Route · Colorado · BCR 16
Animas 2 Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 90 species recorded across 13 survey years, still active.
90Species Recorded
13Years Surveyed
2005–2021Span
4Observers
Bird Species Found on Colorado Animas 2
Top 40 of 90 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Cliff Swallow | Hirundinidae | 49 | 2018 | -51% | 2007 | |
| Red-winged Blackbird | Icteridae | 24 | 2021 | -65% | 2007 | |
| Brewer's Blackbird | Icteridae | 21 | 2018 | -40% | 2007 | |
| Western Kingbird | Tyrannidae | 19 | 2021 | +171% | 2007 | |
| Western Wood-Pewee | Tyrannidae | 19 | 2021 | +169% | 2007 | |
| Western Meadowlark | Icteridae | 18 | 2021 | -5% | 2007 | |
| Yellow Warbler | Parulidae | 17 | 2021 | +757% | 2007 | |
| American Crow | Corvidae | 15 | 2021 | -10% | 2008 | |
| Bushtit | Aegithalidae | 14 | 2017 | +56% | 2005 | |
| Mountain Bluebird | Turdidae | 14 | 2018 | +58% | 2007 | |
| Barn Swallow | Hirundinidae | 12 | 2018 | +238% | 2009 | |
| American Robin | Turdidae | 11 | 2021 | -16% | 2007 | |
| European Starling | Sturnidae | 10 | 2021 | +483% | 2007 | |
| Spotted Towhee | Passerellidae | 10 | 2021 | +167% | 2007 | |
| White-breasted Nuthatch | Sittidae | 10 | 2018 | +217% | 2012 | |
| Pinyon Jay | Corvidae | 9 | 2018 | +267% | 2007 | |
| House Finch | Fringillidae | 9 | 2021 | +100% | 2007 | |
| Gray Flycatcher | Tyrannidae | 8 | 2018 | +467% | 2014 | |
| Brown-headed Cowbird | Icteridae | 8 | 2018 | +16% | 2007 | |
| Northern Mockingbird | Mimidae | 8 | 2021 | -30% | 2007 | |
| Canada Goose | Anatidae | 7 | 2015 | +40% | 2007 | |
| Cassin's Kingbird | Tyrannidae | 6 | 2021 | +414% | 2009 | |
| Ash-throated Flycatcher | Tyrannidae | 6 | 2021 | +200% | 2007 | |
| House Sparrow | Passeridae | 6 | 2021 | -6% | 2007 | |
| Killdeer | Charadriidae | 5 | 2018 | +40% | 2009 | |
| Common Raven | Corvidae | 5 | 2021 | +61% | 2007 | |
| Chipping Sparrow | Passerellidae | 5 | 2021 | +64% | 2007 | |
| Turkey Vulture | Cathartidae | 4 | 2021 | -88% | 2008 | |
| Red-tailed Hawk | Accipitridae | 4 | 2021 | +113% | 2007 | |
| Woodhouse's Scrub-Jay | Corvidae | 4 | 2018 | -15% | 2007 | |
| Lark Sparrow | Passerellidae | 4 | 2021 | +27% | 2007 | |
| Blue Grosbeak | Cardinalidae | 4 | 2021 | -40% | 2007 | |
| Lesser Goldfinch | Fringillidae | 4 | 2021 | +291% | 2009 | |
| Song Sparrow | Passerellidae | 4 | 2018 | +0% | 2013 | |
| Mourning Dove | Columbidae | 3 | 2021 | -66% | 2007 | |
| Say's Phoebe | Tyrannidae | 3 | 2018 | +75% | 2007 | |
| Black-billed Magpie | Corvidae | 3 | 2021 | -28% | 2007 | |
| American Goldfinch | Fringillidae | 3 | 2016 | +20% | 2009 | |
| Lazuli Bunting | Cardinalidae | 3 | 2017 | +0% | 2006 | |
| Northern Rough-winged Swallow | Hirundinidae | 3 | 2018 | -64% | 2007 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.