In July 2019 a game warden in Bridgton, Maine, got an unusual call: A bald eagle was floating lifeless in a lake. At the time, biologists suspected the animal might have been shot or poisoned by lead fishing tackle—all too common causes of death for wild birds.
According to D’Auria, a dead loon chick was found nearby, suggesting a defensive loon parent gored the eagle as it attacked the loon’s nest. This phenomenon is on the rise in New England, as bald eagles continue to bounce back from near extinction in the 1970s, she says. (Learn how a national symbol bounced back.)
Loons and eagles are also top predators in Highland Lake, competing for valuable territory.
While loons appear serene...