BBS Route · Colorado · BCR 18
Pinneo Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 70 species recorded across 41 survey years, still active.
70Species Recorded
41Years Surveyed
1973–2019Span
7Observers
Bird Species Found on Colorado Pinneo
Top 40 of 70 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Western Meadowlark | Icteridae | 232 | 2019 | +81% | 1975 | |
| House Sparrow | Passeridae | 112 | 2019 | +664% | 1976 | |
| Horned Lark | Alaudidae | 65 | 2019 | -21% | 1975 | |
| Mourning Dove | Columbidae | 53 | 2019 | +14% | 1975 | |
| Lark Sparrow | Passerellidae | 33 | 2019 | +183% | 1976 | |
| Grasshopper Sparrow | Passerellidae | 26 | 2019 | +190% | 1975 | |
| Cassin's Sparrow | Passerellidae | 23 | 2019 | -22% | 1975 | |
| Lark Bunting | Passerellidae | 19 | 2019 | -89% | 1975 | |
| Dickcissel | Cardinalidae | 19 | 2018 | +417% | 1997 | |
| Killdeer | Charadriidae | 12 | 2019 | +214% | 1975 | |
| Western Kingbird | Tyrannidae | 11 | 2019 | +82% | 1975 | |
| Brown-headed Cowbird | Icteridae | 11 | 2019 | +200% | 1979 | |
| Ring-necked Pheasant | Phasianidae | 7 | 2019 | +338% | 1976 | |
| European Starling | Sturnidae | 7 | 2019 | +350% | 1975 | |
| Chestnut-collared Longspur | Calcariidae | 6 | 2016 | -57% | 1973 | |
| Cliff Swallow | Hirundinidae | 6 | 2019 | +250% | 1995 | |
| American Goldfinch | Fringillidae | 6 | 2019 | +167% | 1999 | |
| Brewer's Blackbird | Icteridae | 5 | 1977 | +67% | 1976 | |
| Red-winged Blackbird | Icteridae | 4 | 2018 | +239% | 1975 | |
| Barn Swallow | Hirundinidae | 4 | 2019 | +100% | 1975 | |
| American Avocet | Recurvirostridae | 4 | 1974 | n/a | n/a | |
| Common Grackle | Icteridae | 4 | 2019 | +8% | 1977 | |
| Ferruginous Hawk | Accipitridae | 4 | 2019 | +100% | 1988 | |
| Long-billed Curlew | Scolopacidae | 3 | 1994 | +33% | 1976 | |
| Burrowing Owl | Strigidae | 3 | 2019 | -54% | 1977 | |
| Bullock's Oriole | Icteridae | 3 | 2019 | +533% | 1977 | |
| Northern Mockingbird | Mimidae | 3 | 2019 | +0% | 1975 | |
| Blue-winged Teal | Anatidae | 3 | 1981 | n/a | n/a | |
| Blue Grosbeak | Cardinalidae | 3 | 2019 | +67% | 1997 | |
| Turkey Vulture | Cathartidae | 3 | 2010 | n/a | n/a | |
| Great Blue Heron | Ardeidae | 2 | 1993 | +0% | 1975 | |
| Red-tailed Hawk | Accipitridae | 2 | 2018 | +33% | 1979 | |
| Swainson's Hawk | Accipitridae | 2 | 2019 | +33% | 1977 | |
| Red-headed Woodpecker | Picidae | 2 | 2009 | +50% | 1990 | |
| Black-billed Magpie | Corvidae | 2 | 2010 | -60% | 1983 | |
| Eastern Kingbird | Tyrannidae | 2 | 2016 | +0% | 1980 | |
| Great Horned Owl | Strigidae | 2 | 2018 | +25% | 1982 | |
| Northern Pintail | Anatidae | 2 | 1979 | n/a | n/a | |
| Baltimore Oriole | Icteridae | 2 | 1979 | n/a | n/a | |
| Northern Harrier | Accipitridae | 2 | 2018 | +0% | 1985 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.