Guatemalan soldiers and members of the Wildlife Conservation Society walk through a field of Brazilian cattle grass. Photos by Santiago Billy
Illegal ranchers post signs, staking out their territory in Laguna del Tigre National Park.
Ramón Peralta, an experienced forest guide, talks with McNab as they look at an area that illegal ranchers slashed and burned.
A scarlet macaw feeds in a tree.
Soldiers examine a barbed-wire fence.
McNab's machete and binoculars sit on a tree as he waits for a boat to arrive in the San Pedro River.
Cattle graze on an illegal ranch.