What does the term 'mistbeller' refer to concerning the German Spitz's history?

Answer

They sat on hilltops to watch their domain.

Historically, the German Spitz was sometimes called a 'mistbeller,' or 'dung-hill barker,' because of their role watching their territory from elevated positions like hilltops.

What does the term 'mistbeller' refer to concerning the German Spitz's history?
behaviorDogseparationpetGerman Spitz