Bird Conservation Region 53
Sierra
Madre del Sur
Sierra Madre del Sur
borders the Pacific coast from the Eje Neovolcánico to the Istmo
de Tehuantepec, extending about 1,200 kilometers through the states of
Jalisco, Colima, Michoacán, Guerrero, and Oaxaca. One of the many
IBAs in this region, Sierra de Miahuatlán, is a mountain range
in southern Oaxaca dominated by tropical semi-deciduous forest, cloud
forest, and pine-oak forest. Birds that have been reported for this mountain
range include Whitethroated Jay, Blue-capped Hummingbird, Black-capped
Vireo, White-naped Swift, Long-tailed Wood-Partridge, Rufous-bellied Chachalaca,
West-Mexican Chachalaca, Cinnamon Hummingbird, and the Blue-capped Hummingbird
(the latter being endemic to Miahuatlán). The vegetation of Acahuizotla–Agua
del Obispo in Guerrero consists of tropical deciduous and semi-deciduous
forests, pine forest, and grasslands. Additional endemic birds here include
Eared Poorwill, Gray-crowned Woodpecker, Barred Woodcreeper, Emerald Toucanet,
Green-fronted Hummingbird, Flammulated Flycatcher, Rosy Thrush-Tanager,
Red-headed Tanager, Collared Towhee, and Dwarf Vireo. Sierra de Atoyac
IBA includes
Cerro Teotepec, the highest peak in Guerrero at 3,705 meters. Vegetation
is tropical semi-deciduous, cloud, and coniferous forests. Additional
endemic species include Scaled Antpitta, Russet Nightingale-Thrush, Unicolored
Jay, Sinaloa Wren, Happy Wren, and Golden Vireo. Threatened species include
Ornate Hawk-Eagle, Black Hawk-Eagle, Bat Falcon, Singing Quail, Short-crested
Coquette, White-throated Jay, White-tailed Hummingbird, and Yellow-headed
Parrot. Omiltemi is another Guerrero IBA. This one consists of a series
of humid canyons covered with pine-oak, cloud, tropical deciduous, and
tropical semi-deciduous forests. This very isolated area is a center of
endemism and species richness, including several bird species of restricted
distribution and/or many endangered species. Among these are the White-throated
Jay, White-tailed Hummingbird, White-striped Woodcreeper, Longtailed Wood-Partridge,
Aztec Thrush, and Emerald Toucanet.
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