BBS Route · Texas · BCR 19
Williams Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 74 species recorded across 19 survey years, still active.
74Species Recorded
19Years Surveyed
1996–2024Span
4Observers
Bird Species Found on Texas Williams
Top 40 of 74 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Cliff Swallow | Hirundinidae | 66 | 2024 | +105% | 1999 | |
| Mourning Dove | Columbidae | 57 | 2024 | -43% | 1998 | |
| American Crow | Corvidae | 41 | 2024 | -61% | 1998 | |
| Northern Bobwhite | Odontophoridae | 34 | 2024 | -71% | 1998 | |
| Cassin's Sparrow | Passerellidae | 31 | 2024 | +215% | 1999 | |
| Lark Sparrow | Passerellidae | 26 | 2024 | 11× | 1999 | |
| Northern Mockingbird | Mimidae | 22 | 2024 | +3% | 1998 | |
| Scissor-tailed Flycatcher | Tyrannidae | 19 | 2024 | -27% | 1998 | |
| Western Cattle-Egret | Ardeidae | 19 | 2007 | n/a | n/a | |
| Common Grackle | Icteridae | 18 | 2024 | +38% | 2000 | |
| Northern Rough-winged Swallow | Hirundinidae | 16 | 2021 | 12× | 2007 | |
| Common Nighthawk | Caprimulgidae | 15 | 2024 | +463% | 1998 | |
| Western Meadowlark | Icteridae | 15 | 2024 | -65% | 1998 | |
| Great-tailed Grackle | Icteridae | 14 | 2023 | -88% | 1998 | |
| Dickcissel | Cardinalidae | 12 | 2024 | +13% | 1998 | |
| Red-winged Blackbird | Icteridae | 9 | 2024 | -53% | 1998 | |
| Barn Swallow | Hirundinidae | 9 | 2024 | -54% | 1998 | |
| Wild Turkey | Phasianidae | 9 | 2024 | -20% | 2006 | |
| Golden-fronted Woodpecker | Picidae | 8 | 2024 | -12% | 1998 | |
| Painted Bunting | Cardinalidae | 8 | 2024 | +644% | 1998 | |
| House Sparrow | Passeridae | 8 | 2024 | -68% | 1998 | |
| Brown-headed Cowbird | Icteridae | 8 | 2024 | -8% | 1999 | |
| Chihuahuan Raven | Corvidae | 8 | 2024 | +200% | 2002 | |
| Grasshopper Sparrow | Passerellidae | 7 | 2024 | +23% | 1998 | |
| Eastern Bluebird | Turdidae | 7 | 2021 | -6% | 2006 | |
| Bullock's Oriole | Icteridae | 6 | 2021 | +360% | 1998 | |
| Northern Cardinal | Cardinalidae | 6 | 2024 | +300% | 2000 | |
| Turkey Vulture | Cathartidae | 6 | 2024 | -9% | 2001 | |
| Chimney Swift | Apodidae | 6 | 2023 | -25% | 2002 | |
| Blue Grosbeak | Cardinalidae | 6 | 2024 | +300% | 2003 | |
| Ash-throated Flycatcher | Tyrannidae | 5 | 2024 | +400% | 1999 | |
| Horned Lark | Alaudidae | 5 | 2024 | +243% | 2002 | |
| Eurasian Collared-Dove | Columbidae | 5 | 2024 | +11% | 2010 | |
| Eastern Screech-Owl | Strigidae | 4 | 1997 | n/a | n/a | |
| European Starling | Sturnidae | 4 | 2019 | -50% | 2005 | |
| Bell's Vireo | Vireonidae | 4 | 2021 | +100% | 2019 | |
| Eastern Meadowlark | Icteridae | 3 | 2023 | -76% | 1998 | |
| Bewick's Wren | Troglodytidae | 3 | 2024 | +86% | 1999 | |
| Great Horned Owl | Strigidae | 3 | 2021 | +80% | 2002 | |
| Mallard | Anatidae | 3 | 2004 | +200% | 2002 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.