The mountains of Scotland are home to some iconic bird species. Seeing a Golden Eagle flying above a mountain ridge or spotting the striking Dotterel on a high plateau can add a little extra something to your day in the hills. But what if our birds started to disappear, and nobody noticed?The British Trust for Ornithology (BTO) wants to improve monitoring and is asking for help from hillwalkers, climbers and other outdoor folk. They need volunteers to help out with their new Mountain Bird Survey. Perhaps you could help? Taking part in the survey is a great way to add another…