There are areas of Caledonian pinewood at Shieldaig, Coulin, Torridon, Beinn Eighe, Rhidorroch, Achnashellach and the islands on Loch Maree. Though small in terms of area, these pinewoods (which are composed chiefly of Scots pine, alongside deciduous species such as birch and rowan) are an internationally important habitat. These woods are genetically distinct from the pinewoods of central and eastern Scotland, and support a highly specialised flora and fauna including rare mosses and lichens, and insects such as the Scottish wood ant. The pinewoods are also habitats for red squirrel and black grouse.