What I consider the coastal bend of Texas runs from the mouth of the Guadalupe River to the North and South to the Corpus Christi area. Bird watching in the coastal bend can be the best in the United States for numbers of species. I regularly see over 100 species a day in the winter, and average 115-125 species in late April. Here are some birds of interest in the coastal bend region that can be found.
Least Grebe- Uncommon resident, more common during wet years.
Northern Gannet- Uncommon winter resident offshore, can be seen from the beach. Very rare in summer.
Neotropic Cormorant- Common resident.
Anhinga- Uncommon resident, more common during migration.
Magnificent Frigatebird- Fairly common summer resident.
Least Bittern- Fairly common summer resident, very rare in winter.
Reddish Egret- Common resident.
Roseate Spoonbill- Common resident.
Wood Stork- Uncommon late summer resident.
Black-Bellied Whistling-Duck- Common resident.
Fulvous Whistling-Duck- Uncommon summer resident, rare in winter.
Ross's Goose- Uncommon winter resident.
Mottled Duck- Common resident.
Swallow-Tailed Kite- Uncommon fall migrant, rare spring migrant.
White-Tailed Kite- Uncommon to rare resident.
Harris's Hawk- Uncommon resident in the coastal bend, more common inland and south.
White-Tailed Hawk- Fairly common resident.
Crested Caracara- Fairly Common resident.
Peregrine Falcon- Uncommon winter resident.
Clapper Rail- Uncommon resident.
Purple Gallinule- Uncommon summer resident, very rare in winter.
Whooping Crane- Common winter resident in limited range.
Piping Plover- Common winter resident, uncommon to rare in summer.
Lesser Black-Backed Gull- Uncommon winter resident.
Least Tern- Common summer resident.
White-Tipped Dove- Rare resident in the coastal bend, more common further south.
Burrowing Owl- Rare winter resident.
Groove-Billed Ani- Uncommon to rare summer resident, rare winter resident, more common further south.
Buff-Bellied Hummingbird- Fairly common summer resident, uncommon to rare winter resident.
Green Kingfisher- Rare resident.
Golden-Fronted Woodpecker- Common resident.
Ladder-Backed Woodpecker- Fairly Common resident.
Vermilion Flycatcher- Uncommon winter resident.
Brown-Crested Flycatcher- Common summer resident.
Couch's Kingbird- Common resident.
Great Kiskadee- Common resident.
Scissor-Tailed Flycatcher- Common summer resident, rare in winter.
Migrant Flycatchers- Migrants
Green Jay- Uncommon resident, more common south.
Cave Swallow- Common summer resident, uncommon winter resident.
Black-Crested Titmouse- Uncommon resident.
Migrant Thrushes- Migrants
Long-Billed Thrasher- Uncommon resident.
Sprague's Pipit- Uncommon winter resident.
Migrant Warblers- Migrants
Olive Sparrow- Rare resident, more common south.
Cassin's Sparrow- Fairly common spring and summer resident.
Grasshopper Sparrow- Uncommon winter resident, rare in summer.
LeConte's Sparrow- Uncommon winter resident.
Nelson's Sparrow- Rare winter resident.
Seaside Sparrow- Uncommon to rare resident.
Migrant Buntings and Orioles- Migrants
Pyrrhuloxia- Uncommon resident, more common west.