Swedish Television (SVT) broadcasts live streams during the time of the yearly moose migration: Den stora älgvandringen. Sort of Moose Trail Cam. They put up cameras along common moose trails and river crossing points. The stream cast alternates between those points, and 99% of the time it’s mainly birdsong, the sound of rushing water and rustling of tree leaves, occasional spotting of other wildlife like fox, pheasant or badgers.
They started it ten years ago, and it proved to be so popular, that they’ve kept it up ever since. Some people follow along and post to Facebook when they see cute creatures or dramatic scenes like “Ooh! A fox just fought with a hare!”.
Other people, like me, have it on (with the sound in noise canceling headphones) just to have some zen like peace while doing boring administrative work at the busy office.