![](https://media.audubon.org/img_27896.jpg?width=233&height=200&auto=webp&quality=10&fit=crop&disable=upscale&enable=upscale&blur=100)
Chimney Swift Towers Go Up in Minnesota
August 17, 2012 —
Johnny Herr, an Eagle Scout from Minneapolis, builds bird boxes with Audubon.
Susan Cosier is a Chicago-based journalist focused on science and the environment.