Why 3 hours? Tranquil nature soundscapes are excellent for relaxing, meditation, insomnia, studying, tinnitus sufferers, or just play the background scenery on your big screen TV when you are not watching shows. The genre is called "slow television" or "slow TV". Bison (also called buffalo) are the largest mammals in Yellowstone National Park shown here in the Lamar Valley at a watering hole. Buffalo can move with surprising speed to defend their young or when approached too closely by people. Bison breed from mid-July to mid-August, and bear one calf in April and May.
I recorded this on 6/11/13 from 1:30 at a watering hole.