Many people come to Texas to see many of the "valley specialties" that can only be found in the Rio Grande Valley of Texas. The valley runs from the Laguna Atascosa NWR to Brownsville and west to about San Ygnacio. In this region, you will find many tropical species found nowhere else in the United States. Here is a list of the birds of interest that are regularly found in the valley. Every year many "accidentals" also occur in the valley, many that have only been found in the United States a few times.
Least Grebe- Common resident.
Neotropic Cormorant- Common resident.
Wood Stork- Uncommon late summer migrant.
Black-Bellied Whistling-Duck- Common resident.
Muscovy Duck- Rare to very rare and local resident.
Hook-Billed Kite- Rare to very rare and local resident.
White-Tailed Kite- Uncommon resident.
Gray Hawk- Uncommon resident.
Harris's Hawk- Common resident.
White-Tailed Hawk- Fairly Common resident.
Zone-Tailed Hawk- Locally uncommon winter resident.
Crested Caracara- Common resident.
Aplomado Falcon- Uncommon resident.
Purple Gallinule- Uncommon summer resident, rare in winter.
Red-Billed Pigeon- Uncommon summer resident, rare winter resident. Local.
White-Tipped Dove- Common resident.
Green Parakeet- Fairly common resident.
Red-Crowned Parrot- Uncommon resident.
Greater Roadrunner- Fairly common resident.
Groove-Billed Ani- Common summer resident, rare winter resident.
Ferruginous Pygmy-Owl- Very rare resident.
Elf Owl- Locally uncommon summer resident.
Common Pauraque- Common resident.
Buff-Bellied Hummingbird- Common summer resident, uncommon winter resident.
Ringed Kingfisher- Uncommon resident.
Green Kingfisher- Uncommon resident.
Golden-Fronted Woodpecker- Abundant resident.
Northern Beardless-Tyrannulet- Rare resident.
Black Phoebe- Uncommon winter resident.
Vermilion Flycatcher- Uncommon winter resident, rare in summer.
Brown-Crested Flycatcher- Common summer resident, rare in winter.
Great Kiskadee- Abundant resident.
Tropical Kingbird- Locally uncommon resident, more common in winter.
Couch's Kingbird- Common summer resident, locally uncommon in winter.
Scissor-Tailed Flycatcher- Common summer resident, rare winter resident.
Yellow-Green Vireo- Rare summer resident.
Green Jay- Common resident.
Brown Jay- Very rare resident, not present most years.
Tamaulipas Crow- Very rare resident, not present most years.
Black-Crested Titmouse- Common resident.
Cactus Wren- Uncommon resident.
Clay-Colored Thrush- Uncommon resident.
Long-Billed Thrasher- Common resident.
Curve-Billed Thrasher- Fairly Common resident.
Tropical Parula- Rare to very rare resident.
Black-Throated Gray Warbler- Rare winter resident.
White-Collared Seedeater- Very rare resident, more common near Laredo.
Olive Sparrow- Common resident.
Botteri's Sparrow- Uncommon and local summer resident.
Pyrrhuloxia- Fairly Common resident.
Crimson-Collared Grosbeak- Very rare winter resident.
Bronzed Cowbird- Common summer resident, uncommon winter resident.
Hooded Oriole- Uncommon summer resident, rare in winter.
Altamira Oriole- Uncommon resident.
Audubon's Oriole- Uncommon to rare resident,