BBS Route · Colorado · BCR 18
Abarr Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 82 species recorded across 49 survey years, still active.
82Species Recorded
49Years Surveyed
1968–2024Span
6Observers
Bird Species Found on Colorado Abarr
Top 40 of 82 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Western Meadowlark | Icteridae | 178 | 2024 | -24% | 1970 | |
| Horned Lark | Alaudidae | 111 | 2024 | -52% | 1970 | |
| Mourning Dove | Columbidae | 56 | 2024 | -14% | 1970 | |
| Cassin's Sparrow | Passerellidae | 29 | 2024 | -31% | 1972 | |
| Red-winged Blackbird | Icteridae | 28 | 2024 | +150% | 1970 | |
| Common Grackle | Icteridae | 27 | 2023 | 18× | 1976 | |
| Lark Bunting | Passerellidae | 20 | 2024 | -57% | 1970 | |
| Grasshopper Sparrow | Passerellidae | 17 | 2024 | +108% | 1970 | |
| Common Nighthawk | Caprimulgidae | 15 | 2024 | +238% | 1972 | |
| House Sparrow | Passeridae | 14 | 2024 | -76% | 1970 | |
| Brown-headed Cowbird | Icteridae | 8 | 2024 | +73% | 1971 | |
| Savannah Sparrow | Passerellidae | 8 | 1969 | n/a | n/a | |
| Ring-necked Pheasant | Phasianidae | 7 | 2024 | -85% | 1970 | |
| Lark Sparrow | Passerellidae | 7 | 2024 | -9% | 1970 | |
| Northern Mockingbird | Mimidae | 7 | 2024 | +31% | 1970 | |
| Western Kingbird | Tyrannidae | 6 | 2024 | -22% | 1970 | |
| Eastern Kingbird | Tyrannidae | 6 | 2024 | -20% | 1972 | |
| Eurasian Collared-Dove | Columbidae | 6 | 2024 | +700% | 2010 | |
| European Starling | Sturnidae | 5 | 2024 | -78% | 1971 | |
| Brewer's Blackbird | Icteridae | 5 | 2023 | +225% | 1974 | |
| Barn Swallow | Hirundinidae | 4 | 2024 | -53% | 1970 | |
| American Robin | Turdidae | 4 | 2024 | +80% | 1986 | |
| Brewer's Sparrow | Passerellidae | 3 | 1998 | -94% | 1970 | |
| Killdeer | Charadriidae | 2 | 2024 | +0% | 1970 | |
| Northern Harrier | Accipitridae | 2 | 1999 | +0% | 1974 | |
| Black-billed Magpie | Corvidae | 2 | 1999 | -64% | 1971 | |
| Cliff Swallow | Hirundinidae | 2 | 2024 | 12× | 1971 | |
| Northern Rough-winged Swallow | Hirundinidae | 2 | 2014 | -13% | 1976 | |
| Red-headed Woodpecker | Picidae | 2 | 2024 | -33% | 1975 | |
| Sage Thrasher | Mimidae | 2 | 1969 | n/a | n/a | |
| Red-tailed Hawk | Accipitridae | 2 | 2024 | +67% | 1984 | |
| Bullock's Oriole | Icteridae | 2 | 2024 | -46% | 1972 | |
| Mallard | Anatidae | 2 | 2021 | +0% | 1975 | |
| American Goldfinch | Fringillidae | 2 | 1992 | +100% | 1978 | |
| Blue Grosbeak | Cardinalidae | 2 | 2023 | +25% | 1984 | |
| Long-eared Owl | Strigidae | 2 | 1983 | n/a | n/a | |
| Wood Duck | Anatidae | 2 | 1985 | n/a | n/a | |
| Greater Prairie-Chicken | Phasianidae | 2 | 2023 | 12× | 1988 | |
| Wild Turkey | Phasianidae | 2 | 2016 | +125% | 2004 | |
| Upland Sandpiper | Scolopacidae | 1 | 2024 | -40% | 1972 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.