The male and female loons took turns incubating the eggs. But on May 23, we noticed both loons were off the nest all day. We went to the nest and found this tragic scene. I sent this photo to our contact person at the MN Loon Monitoring Project and he thought it might have been a mink or an otter that did this. When a nest fails early in the incubation process, loons often try again. Sure enough, about a week later there were two more eggs in the nest and the loons started incubating again.