BBS Route · Texas · BCR 35
Cornudas Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 54 species recorded across 29 survey years, still active.
54Species Recorded
29Years Surveyed
1968–2018Span
9Observers
Bird Species Found on Texas Cornudas
Top 40 of 54 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Ash-throated Flycatcher | Tyrannidae | 33 | 2018 | +338% | 1971 | |
| Northern Mockingbird | Mimidae | 26 | 2018 | +18% | 1970 | |
| Black-throated Sparrow | Passerellidae | 21 | 2018 | -44% | 1970 | |
| Mourning Dove | Columbidae | 17 | 2018 | +442% | 1970 | |
| Cassin's Kingbird | Tyrannidae | 16 | 2015 | +29% | 1971 | |
| House Finch | Fringillidae | 11 | 2018 | +3% | 1970 | |
| Loggerhead Shrike | Laniidae | 11 | 2018 | -8% | 1970 | |
| House Sparrow | Passeridae | 10 | 2015 | -4% | 1972 | |
| Turkey Vulture | Cathartidae | 8 | 2018 | +57% | 1970 | |
| Western Meadowlark | Icteridae | 8 | 2018 | +143% | 1970 | |
| Western Kingbird | Tyrannidae | 7 | 2018 | +91% | 1970 | |
| Cactus Wren | Troglodytidae | 7 | 2018 | -34% | 1970 | |
| Common Nighthawk | Caprimulgidae | 7 | 2018 | -7% | 1971 | |
| Scaled Quail | Odontophoridae | 6 | 2018 | +31% | 1970 | |
| Scott's Oriole | Icteridae | 6 | 2018 | -27% | 1970 | |
| Curve-billed Thrasher | Mimidae | 6 | 2018 | +0% | 1970 | |
| Cassin's Sparrow | Passerellidae | 6 | 2018 | -73% | 1975 | |
| Red-tailed Hawk | Accipitridae | 5 | 2018 | +13% | 1970 | |
| Swainson's Hawk | Accipitridae | 4 | 2018 | +233% | 1970 | |
| Lark Sparrow | Passerellidae | 4 | 2015 | +0% | 1974 | |
| Blue Grosbeak | Cardinalidae | 4 | 2018 | +125% | 1975 | |
| Pyrrhuloxia | Cardinalidae | 4 | 2018 | -13% | 1999 | |
| American Kestrel | Falconidae | 3 | 2018 | +60% | 1971 | |
| Chihuahuan Raven | Corvidae | 3 | 2018 | +400% | 1971 | |
| Great Horned Owl | Strigidae | 2 | 2003 | -29% | 1975 | |
| Lesser Nighthawk | Caprimulgidae | 2 | 2015 | -75% | 1975 | |
| Northern Harrier | Accipitridae | 2 | 1973 | n/a | n/a | |
| Brown-headed Cowbird | Icteridae | 2 | 2018 | +0% | 1978 | |
| Burrowing Owl | Strigidae | 2 | 2006 | +50% | 1984 | |
| Bullock's Oriole | Icteridae | 2 | 2018 | +33% | 2005 | |
| Lesser Goldfinch | Fringillidae | 2 | 2018 | +100% | 1999 | |
| Verdin | Remizidae | 2 | 2006 | +0% | 2003 | |
| Broad-tailed Hummingbird | Trochilidae | 2 | 2006 | n/a | n/a | |
| Western Wood-Pewee | Tyrannidae | 2 | 2006 | n/a | n/a | |
| Eurasian Collared-Dove | Columbidae | 2 | 2018 | n/a | n/a | |
| Killdeer | Charadriidae | 1 | 2003 | -50% | 1992 | |
| Greater Roadrunner | Cuculidae | 1 | 2018 | +0% | 1992 | |
| Ladder-backed Woodpecker | Picidae | 1 | 2018 | +75% | 1974 | |
| Horned Lark | Alaudidae | 1 | 1999 | -77% | 1970 | |
| Violet-green Swallow | Hirundinidae | 1 | 1968 | n/a | n/a |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.