Black vulture foraging on the ground in the rain among scattered white turtle shells, overcast day

black vulture coragyps atratus scavenging bird turtle wildlife foraging nature beak feathers black white shells ground overcast scavenger omnivore survival forage pecking searching feeding ecosystem avian animal behavior outdoor ground level vulture natural light grey food chain adaptation intelligence birdlife fauna solitary wild olive ridley habitat environment pebble earth texture contrast animal theme wild bird conservation species instinct