Attack of the Killer Red Grouse

I’ve heard of people being confronted by capercaillie in their territory, but never by a red grouse. I had just reached the ridge above the Bridge of Muick on my way to Cairn Leuchan, when a red grouse flew in and landed at my feet. It then scolded and clucked at length while I took some pictures. I did wonder if it was actually going to physically attack me, but it merely squawked around my boots until it felt it had escorted me off the premises, at which point it stopped. Remarkable! The incident brightened an otherwise dull and wet morning. Other than the brave or stupid grouse, I saw three blackcock, a herd of red deer, and three mountain hares.