The scourge of walkers, climbers and tourists alike, clouds of biting midges are one of Scotland's less attractive attractions. Ticks, too, have earned the enmity of anyone who has had to take the tweezers to remove that charming beast that loves to burrow its head in our skin and suck our lifeblood. But in the interests of fairness, Heather Morning, Mountain Safety Advisor with the Mountaineering Council of Scotland, has been doing some research to see if there is a positive side to these wee beasties. She asks, “In a ‘head to head’ battle, does the midge or the tick…