On May 28th at around 8:30 pm. I saw 5 Common Nighthawks flying over the Otonabee River at 9th Line, accompanied by a very vocal male nighthawk calling then diving from a tree. He flew to another tree when he came up from his dive, and then went back to the original tree where he repeated both the call and dive again.
Common Nighthawk – Wikimedia
Susan Chow, Biology Department, Trent University
