This is what a roe deer bark sounds like.
Yep, roe deer bark and here is a video of a male barking when it spotted the guy who filmed this video in Europe.
Watch the video to hear what it sounds like.
You could be forgiven if you thought the diminutive roe deer was incapable of making a sound like that. However, this video is real and they really can.
Scientists theorize that roe deer bark upon identifying a potential predator in order to let the predator know it was spotted. It is sort of a “hey, I see you, so don’t bother trying to eat me” kind of deal.