Whiskey Jacks are cheeky little birds. We were on the Fairview Loop near Lake Louise when we sat down for lunch. It didn't take long before we were spotted by a Whiskey Jack who started dive bombing us, trying to get our sandwiches! The little guy started screaming at us and soon was joined by his buddy. Eating a leisurely lunch was impossible! They were swooping in, snatching at our food. One would act as a decoy while the other flew in for the next attack. They'd come in feet first, grabbing at the food - it was all I could do to fend them off! They look cute, but I tell you, they are not to be trifled with!