We witnessed an intense 18 minutes at the North Nest last night when a subadult eagle dropped in for a dusk-time snack. DNF was not pleased, but rather than risk a struggle that could endanger her eggs, she mantled over them and vocalized sharply, making it clear that the intruder was unwelcome.
At first the subadult focused on nestovers, paying little attention to DNF. But when it moved toward her – roughly two minutes into this video or about 16 minutes after arriving – her peal calls grew louder and more frantic. She lunged and snapped at the intruder, spreading her wings wide and forcing it back. Moments later, at 3:24, Mr. North flew in hot and swiftly chased the intruder away.
With the danger gone and her eggs secure beneath her, DNF let out a few soft vocalizations and peals before settling back down. We were glad to see her and her eggs safe and sound.
Full video here: https://youtu.be/EPmfbHujU5E?si=cQbiQeXkOjiGOhCA
The Raptor Resource Project