There was none to feed them, and they could not find food for themselves, nor could they stand the rigour of the winter when exposed to the frost in the open air.
Some kinds, more hardy and fitted by nature for the chase, became wild, and their descendants are now found in the woods.

Of these, there are three sorts which keep apart from each other, and are thought not to interbreed.

The most numerous are the black.

The black wood-dog is short and stoutly made, with shaggy hair, sometimes marked with white patches.
There can be no doubt that it is the descendant of the ancient sheep-dog, for it is known that the sheep-dog was of that character, and it is said that those who used to keep sheep soon found their dogs abandon the fold, and join the wild troops that fell upon the sheep.

The black wood-dogs hunt in packs of ten or more (as many as forty have been counted), and are the pest of the farmer, for, unless his flocks are protected at night within stockades or enclosures, they are certain to be attacked.