Wildlife is abundant with opportunities for hunting whitetail deer and wild turkey. They also imitate a few sounds other than those of wild birds. There is also a distinction between wild and domesticated animals. Hunting is the practice of seeking, pursuing and capturing or killing wild animals. It is home to number of wild animals viz. Electric fences are useful for controlling the movements of wild animals. India is home to the world's largest population of wild tigers. Some estimations of lifespans of wild birds has exceeded 50 years. Domesticated rats have a longer lifespan than that of wild rats. Gansu has 659 species of wild animals. Bush meat refers to any meat that is procured from the wild. This is attributable both to breeding and to different conditions in the wild. Away on the mountains wild and bare. The serval is vulnerable to hyaenas and wild dogs. The duckling sees a flock of migrating wild swans.