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.

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