The purple martin is the largest swallow in North America ... mid-April in southern Canada, May in Arizona, early May in Montana. During fall, in the East, very large aggregations of thousands ...

North America’s largest species of swallow, purple martins winter in the rainforests of Brazil before making up to a 7000-mile migration north into the eastern United States and Canada ...

North America’s largest species of swallow, purple martins winter in the rainforests of Brazil before making up to a 7,000-mile migration north into the eastern United States and Canada.

This is the metadata section. Skip to content viewer section. As a result of anthropogenically induced habitat destruction and climate change, the Eastern Purple Martin in North America has been ...

In a sure sign that spring is not far behind, the first purple martins of the year have been spotted in South Dakota.