Ÿou cross a forest boundary! It´s nothing to be alarmed about, it’s an area where the forest gradually colonises the rhododendron moors. This area at the upper limit of the forest is a vital habitat for the black grouse (Tetrao tetrix). Effectively, this concentrated area allows it, by turns, to nest (semi-woody cover), to raise the young (insects, berries and grasses), to feed in autumn (bilberries) or even in winter (tree buds) and to host its courtship displays. The gîte and the cover.