West Gulf Coastal Plain / Ouachitas
An ecological region spanning Arkansas, Louisiana, Oklahoma, Texas, with 110 survey routes. BCRs are the natural unit for bird trends.
What Is Moving Here
Loggerhead Shrike has collapsed in West Gulf Coastal Plain / Ouachitas: down 97% on the route-weighted index since 1969.
Cliff Swallow has surged in West Gulf Coastal Plain / Ouachitas: up 33× on the route-weighted index since 1976.
Field Sparrow has collapsed in West Gulf Coastal Plain / Ouachitas: down 96% on the route-weighted index since 1969.
Mississippi Kite has surged in West Gulf Coastal Plain / Ouachitas: up 15× on the route-weighted index since 1970.
Northern Bobwhite has collapsed in West Gulf Coastal Plain / Ouachitas: down 95% on the route-weighted index since 1969.
Eastern Towhee has surged in West Gulf Coastal Plain / Ouachitas: up 13× on the route-weighted index since 1969.
How Guilds Are Faring
Survey Routes
Species By Family
Hawks, Eagles & Kites Accipitridae
Larks Alaudidae
Kingfishers Alcedinidae
Ducks, Geese & Waterfowl Anatidae
Anhingas Anhingidae
Swifts Apodidae
Herons, Egrets & Bitterns Ardeidae
Nightjars & Nighthawks Caprimulgidae
Cardinals & Grosbeaks Cardinalidae
Plovers & Lapwings Charadriidae
Pigeons & Doves Columbidae
Falcons & Caracaras Falconidae
Finches Fringillidae
Swallows & Martins Hirundinidae
Blackbirds & Orioles Icteridae
Shrikes Laniidae
New World Quail Odontophoridae
Osprey Pandionidae
Wood-Warblers Parulidae
New World Sparrows Passerellidae
Old World Sparrows Passeridae
Cormorants Phalacrocoracidae
Pheasants, Grouse & Turkeys Phasianidae
Woodpeckers Picidae
Grebes Podicipedidae
Gnatcatchers Polioptilidae
Starlings & Mynas Sturnidae
Ibises & Spoonbills Threskiornithidae
Hummingbirds Trochilidae
Tyrant Flycatchers Tyrannidae
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.