From Drovers (they are domestic ungulates, don’t forget!)
A few years ago (or more?) BBC had multiple hours of just walking from one herding camp to another with reindeer and a sleigh. The two women took turns walking or getting pulled - it was quiet, with just the reindeer and wilderness noises. I loved it! They gave off the same sort of peaceful grunting vibe as cattle. I wish I could watch that all the time.
Edit: I found it
Unfortunately my BBC iplayer tricks from US don’t work anymore