To ask the Scottish Executive whether sheep currently gra'e in close proximity or adjacent to the reservoirs, rivers and lochs providing the water supply to Edinburgh and adjacent communities and, if so, how many and whether it is its intention to have them removed and, if so, when; if no sheep are gra'ing, when they were removed and what investigations have been carried out and what information is available regarding any effect relating to public health that the presence of the sheep may...