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

black vulture foraging turtle bird wildlife nature shells scavenging ground coragyps atratus feathers beak pecking searching black overcast natural light outdoor wild olive ridley animal behavior vulture ecosystem feeding survival earthy soil gritty avian solitary cautious texture contrast white shells mollusk remains environment adaptation survival strategy opportunistic intelligent birdwatching ornithology biodiversity fauna tranquility daytime grey forage habitat