BBS Route · Texas · BCR 37
L. Atascosa Nwr Bird Survey Route
A standard 50-stop Breeding Bird Survey route. 108 species recorded across 25 survey years, still active.
108Species Recorded
25Years Surveyed
1998–2023Span
2Observers
Bird Species Found on Texas L. Atascosa Nwr
Top 40 of 108 species by most recent count. Each links to its species trend.
| History | ||||||
|---|---|---|---|---|---|---|
| Red-winged Blackbird | Icteridae | 153 | 2023 | +20% | 2000 | |
| Great-tailed Grackle | Icteridae | 132 | 2023 | +11% | 2000 | |
| Mourning Dove | Columbidae | 80 | 2023 | -45% | 2000 | |
| Laughing Gull | Laridae | 61 | 2023 | -78% | 2000 | |
| Gull-billed Tern | Laridae | 51 | 2023 | +43% | 2000 | |
| Northern Mockingbird | Mimidae | 50 | 2023 | -19% | 2000 | |
| Bronzed Cowbird | Icteridae | 32 | 2023 | +33% | 2000 | |
| Tricolored Heron | Ardeidae | 28 | 2023 | +325% | 2000 | |
| Willet | Scolopacidae | 28 | 2023 | -10% | 2000 | |
| Brown-crested Flycatcher | Tyrannidae | 22 | 2023 | +112% | 2000 | |
| American Coot | Rallidae | 20 | 2023 | -93% | 2006 | |
| Long-billed Curlew | Scolopacidae | 20 | 2023 | +3% | 2005 | |
| Northern Cardinal | Cardinalidae | 18 | 2023 | +170% | 2000 | |
| Great Egret | Ardeidae | 17 | 2023 | +18% | 2000 | |
| Neotropic Cormorant | Phalacrocoracidae | 17 | 2023 | +100% | 2008 | |
| White Ibis | Threskiornithidae | 16 | 2023 | +27% | 2000 | |
| Snowy Egret | Ardeidae | 15 | 2023 | +207% | 2002 | |
| Turkey Vulture | Cathartidae | 15 | 2023 | -13% | 2000 | |
| White-eyed Vireo | Vireonidae | 13 | 2023 | -43% | 2000 | |
| Caspian Tern | Laridae | 12 | 2023 | -40% | 2005 | |
| Yellow-billed Cuckoo | Cuculidae | 11 | 2023 | +67% | 2000 | |
| Little Blue Heron | Ardeidae | 10 | 2023 | +950% | 2002 | |
| Couch's Kingbird | Tyrannidae | 9 | 2023 | +229% | 2000 | |
| Long-billed Thrasher | Mimidae | 9 | 2023 | +214% | 2000 | |
| Wilson's Plover | Charadriidae | 8 | 2023 | +120% | 2005 | |
| American White Pelican | Pelecanidae | 8 | 2019 | -72% | 2009 | |
| Northern Bobwhite | Odontophoridae | 7 | 2023 | +77% | 2000 | |
| Golden-fronted Woodpecker | Picidae | 7 | 2023 | +74% | 2000 | |
| Horned Lark | Alaudidae | 7 | 2018 | +38% | 2001 | |
| Common Gallinule | Rallidae | 7 | 2023 | +67% | 2009 | |
| Hooded Oriole | Icteridae | 7 | 2023 | +140% | 2014 | |
| Least Tern | Laridae | 6 | 2023 | +340% | 2004 | |
| Black-bellied Whistling-Duck | Anatidae | 6 | 2023 | +44% | 2000 | |
| White-tipped Dove | Columbidae | 6 | 2023 | -78% | 2000 | |
| Olive Sparrow | Passerellidae | 6 | 2023 | -70% | 2000 | |
| Forster's Tern | Laridae | 6 | 2023 | -58% | 2003 | |
| Black Vulture | Cathartidae | 6 | 2023 | +140% | 2004 | |
| Wood Stork | Ciconiidae | 6 | 2019 | -67% | 2008 | |
| Mottled Duck | Anatidae | 5 | 2023 | -60% | 2000 | |
| Ladder-backed Woodpecker | Picidae | 4 | 2023 | +20% | 2000 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.