Bird Conservation Region 52
Planicie
Costera y Lomeríos Húmedos del Golfo de México
This BCR has the shape
of a half moon, beginning in central Veracruz and extending southeast
through Tabasco, north through Oaxaca and Chiapas, and east through Campeche.
Vegetation includes tropical evergreen, semi-deciduous and deciduous forests,
thorn forest, oak and pine forests, grasslands, and extensive
areas of early successional growth and agriculture. Humedales del Sur
de Tamaulipas y Norte de Veracruz is an IBA in southern Tamaulipas and
adjacent Veracruz vegetated by thorn forest, introduced grasslands, agricultural
lands, and flooded areas with halophytic vegetation. Wintering migrants
make up 45 percent of the
avifauna, including many species of waterfowl. There are also six Mexican
endemic species here: Green Parakeet, Red-crowned Parrot, Bronze-winged
Woodpecker, Tamaulipan Crow, Altamira Yellowthroat,
and Crimson-collared Grosbeak. Humedales de Alvarado is a central Veracruz
IBA that consists of a coastal system of dunes with desert scrubland patches,
mangroves, and tropical deciduous and semi-deciduous forests. Again, many
of the important birds here are wintering migrants associated with wetlands,
including Piping Plover, Yellow-headed Vulture, Snail Kite, Least Bittern,
Northern Pintail, American White Pelican, Common Black Hawk, and Black-collared
Hawk. Uxpanapa, part of the Coatzacoalcos River Basin, is another IBA
located on the border between Veracruz and Oaxaca. The original vegetation
in the western portion has been transformed, but important extensions
of tropical rainforests remain in the east. Important species include
Long-tailed Sabrewing; Slender-billed Wren; Great, Little, Thicket, and
Slaty-breasted Tinamous; Hook-billed, White-tailed, and Plumbeus Kites;
Crane and White Hawks; Bat and Laughing
Falcons; Plain Chachalaca; Pale-vented Pigeon; Blue Ground-Dove; Gray-fronted
Dove; White-crowned and Mealy Parrots; Squirrel and Striped Cockoos; Green
Shrike-Vireo; Rufousbrowed Peppershrike; Tropical Parula; and a host of
wintering warblers (Magnolia, Black-throated Green, Black-and-white,Worm-eating,
and Kentucky Warblers, Ovenbird, and American Redstart). El Ocote IBA
in the Grijalba Basin River of northwestern Chiapas is covered with tropical
rainforest and tropical deciduous and semi-deciduous forests, thorn forest,
pine and oak forests, grasslands, and agricultural lands. This center
of biodiversity includes Nava’s Wren, Emerald-chinned Hummingbird,
Singing Quail, Chestnut-headed and Montezuma Oropendolas,
and Plain Xenops.
To view another BCR description, click on a number on the map below.
