Shattil & Rozinski / Nature Conservancy's Southmost Preserve, Lower Rio Grande Valley at sunset, Texas, USA

Shattil & Rozinski / Black-bellied whistling ducks (Dendrocygna autumnalis) on wooden railing, Nature Conservancy's Southmost Preserve, Lower Rio Grande Valley, USA

Shattil & Rozinski / Black-bellied whistling ducks (Dendrocygna autumnalis) in flight, The Nature Conservancy's Southmost Preserve, Lower Rio Grande Valley wildlife corridor, Texas, USA

Shattil & Rozinski / Black-bellied whistling duck (Dendrocygna autumnalis) flying, Nature Conservancy Southmost Preserve, Lower Rio Grande Valley wildlife corridor, Texas, USA

Shattil & Rozinski / Tall Mexican fan palms (Washingtonia robusta) in the Nature Conservancy's Southmost Preserve along the Rio Grande, South Texas, USA

Wendy Shattil / Bobwhite quail (Colinus virginianus) male crossing road. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. July.

Wendy Shattil / Gate along USA-Mexico border wall through Southmost Preserve. The border wall separates 85% of the reserve from the United State's side of the barrier. Nature Conservancy Reserve, Brownsville, Tex...

Wendy Shattil / House viewed through border wall. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. 2019.

Wendy Shattil / Black-tailed jackrabbit (Lepus californicus) viewed through border wall. Southmost Preserve, The Nature Conservancy Reserve. The border wall separates 85% of the reserve from the United State's si...

Wendy Shattil / Coyote (Canis latran) howling within no-man's land, Southmost Preserve, The Nature Conservancy Reserve. The border wall separates 85% of the reserve from the United State's side of the barrier...

Wendy Shattil / Border wall with seven inch wide opening at bottom for wildlife. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. 2019.

Wendy Shattil / Hand and foot prints from people who have attempted to climb border wall following crossing the Rio Grande. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. 2019.

Wendy Shattil / Hand and foot prints from people who have attempted to climb border wall following crossing the Rio Grande. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. 2019.

Wendy Shattil / Texas indigo snake (Drymarchon corais erebennus) trail across dirt road. Southmost Preserve, Nature Conservancy Reserve, Brownsville, Texas, USA. July.

Wendy Shattil / Aerial view of border wall at Southmost Preserve, Texas, USA. 85% of the reserve lies on the no-man's land side between the wall and the Rio Grande river disrupting The Nature Conservancy's ac...

Wendy Shattil / Texas Parks and Wildlife biologist weighing Buff-bellied hummingbird (Amazilia yucatanensis) during bird ringing session. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. J...

Wendy Shattil / Green jay (Cyanocorax luxuosus) in the hand, ready for release following bird ringing by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 201...

Wendy Shattil / Green jay (Cyanocorax luxuosus) in the hand, biologist from Texas Parks and Wildlife measuring wing during bird ringing session. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas,...

Wendy Shattil / Black-crested titmouse (Baeolophus atricristatus) in the hand following capture in mist net and bird ringing. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 2019.

Wendy Shattil / Black-crested titmouse (Baeolophus atricristatus) in the hand, biologist from Texas Parks and Wildlife measuring beak length during bird ringing session. Southmost Preserve, The Nature Conservancy res...

Wendy Shattil / Buff-bellied hummingbird (Amazilia yucatanensis) in the hand prior to release, following bird ringing by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texa...

Wendy Shattil / Ladder-backed woodpecker (Dryobates scalaris) in the hand, biologist measuring size of leg during bird ringing. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 2019.

Wendy Shattil / Buff-bellied hummingbird (Amazilia yucatanensis) in the hand ready for release following mist netting and weighing by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brow...

Wendy Shattil / Buff-bellied hummingbird (Amazilia yucatanensis) in stocking for weighing during bird ringing by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA....

Wendy Shattil / Bronzed cowbird (Crotophaga sulcirostris) in the hand following mist netting and ringing by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July...

Wendy Shattil / Bronzed cowbird (Molothrus aeneus) held by wildlife biologist from Texas Parks and Wildlife during ringing. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 2019.

Wendy Shattil / Carolina wren (Thryothorus ludovicianus) in the hand following mist netting and ringing by Texas Parks and Wildlife Department. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas,...

Wendy Shattil / Wildlife biologist from Texas Parks and Wildlife Department carrying bird caught in mist net prior to ringing. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 2019.

Wendy Shattil / Hooded oriole (Icterus cucullatus) male in the hand, mist netted and banded by Texas Parks and Wildlife. Southmost Preserve, The Nature Conservancy reserve, Brownsville, Texas, USA. July 2019.

Wendy Shattil / Buff-bellied hummingbird (Amazilia yucatanensis) in the hand of wildlife biologist from Texas Parks and Wildlife. Hummingbird mist netted for ringing. Southmost Preserve, The Nature Conservancy reserv...