Bird nest

Year after year I always go to this same spot to see this huge bird's nest. In my mind I like to THINK it's an eagles nest...but I really don't know. To my shock there was an egg in it this year!! I wish I could have stayed out all night to see what kind of bird it was....but did not see the mama bird....guess she could plainly see me hovering over the "cliff" looking at her nest.