which opened in 2007, and is home to bbc scotland's television, radio and online services, covering all aspects of national life. one of those crucial aspects is the future of the scottish highlands. vast areas of the countryside are being bought by wealthy individuals keen to return the land to its natural state. they want to introduce the process of rewilding and to stop what they consider ecological degradation, deforestation, and loss of bio—diversity. our special correspondent allan little has been investigating. there is a juniper bush appearing and right down here we have a rowan that has got its orange autumnal colours on it there. across hundreds of thousands of acres, some of scotland's landowners are changing the way they use land. this is glenfeshie where most of the deer have been culled.