With the coming of the bees of springtime also came Doug's migration from the southern climes of Texas back to the northern climes of Maine, namely back on the Trail Crew at Acadia National Park in Bar Harbor. Here we have an end-of-the-day game of Keep-Away with one of the crew's black lab, Hank (a.k.a. "Hank the Tank"). How do they make that whistling sound?
