Tree Swallow Bird Houses

Tree Swallows are found all across the continental United States and Canada, and in parts of Alaska, as far north as cavities are available, avoiding only the southeastern corner of the U.S. Tree Swallows prefer open habitats, such as the edges of woods, and areas near water, including marshes, shorelines and swamps. Tree Swallows are quite tolerant of humans. Nesting is quite synchronous in Tree Swallows; that is, females tend to begin nesting within a week or 10 days, usually in April, of their neighbors. Tree Swallows nest in natural tree cavities, woodpecker holes and nest boxes. Tree Swallow houses should be placed 5 to 15 feet high on a post or tree in open areas. They should be spaced 30 to 100 feet apart with the entrance hole facing east.