At the cabin, we have three kinds of swallows: Barn Swallows, Tree Swallows, and Violet-green Swallows. The Barn Swallows are easy to spot because of their tawny breasts and V-shaped tail. The Tree Swallows and Violet-green Swallows have more in common. On the fly, it's hard (at least for me) to identify one from the other. But when they roost, the unique white curl around the eyes of the Violet-green Swallow makes them stand out.
Like Tree Swallows, they build nests in vacant holes in dead trees, or nesting boxes. While Mom's inside with the kids, Dad often perches on top to keep an eye on things.
Wayne and I got our boxes at a local store, but loggers make their own and place them on trees around Powell Lake. In Chippewa Bay, almost every snag had a box well above the high water mark.
We like having Swallows around. They're fun to watch as they swoop and dive after insects, occasionally dipping into the water to catch their prey. Plus, they keep the mosquito population down for better outdoor enjoyment and sleeping. -- Margy