The San Pedro River is a freeway for up to ten species of hummingbirds between their tropical winter retreats and northern nesting grounds. Enjoy a fascinating and close-up look at these tiny travelers as staff and volunteers from the Southeastern Arizona Bird Observatory capture, band, measure, and release them as part of long-term studies of the bird life of this internationally important migration route. The public is welcome to observe banding sessions at no charge, but donations are gratefully accepted.