When the graze is eaten down the shepherd leads the sheep to the
next pasture. This is very often done on roads and farm roads and
pastures are often several miles apart. The grazes are often public
areas where there is an interest to keep the landscape open and
keep it from overgrowing. It is called landscape care.
Another reason for using tending dogs is the transhumance system.
That means, the flocks of sheep graze in the hills during the summer
and in the milder valleys in the winter. In the fall, on their way
down to the valley or in the spring, going up to the mountains,
harvested fields, including hay fields are used to feed the sheep.
This journey is done every year by foot. The distance may range
from approximately 20 miles up to 100 miles.