Swallows are found around the world, on all continents, including Antarctica. Here in Minnesota, you can find three species of swallows: Barn Swallow, Tree Swallow, and Cliff Swallow. Barn Swallows are sparrow-sized, with a steely blue back, wings and tail, and tan-to-white underparts. Their throat and forehead feature rusty spots. Their tail extends beyond the wingtips and the long outer…