Fjellrev
I thought about it during the last days.
There are some points to think about.
There is - as far as I know - no free to use source of the areas that have "herd protecting dogs". So it all depends on local knowledge. This works, but it needs time.
But more important:
There is, by now, no map feature to map these areas! Of course one can create a own feature, but it will not appear on any map. So it seems quite useless to me :-(
I think it has to be dicussed as a map feature http://wiki.openstreetmap.org/wiki/Map_Features at another place.
So I think we can close this message here and the interested people should take it to the right place.