We have a huge female sea eagle hanging around at the moment..related to and about the same size as a bald eagle...im thinking that might be where shes gone
Oh no! Let's hope she shows up again. I do know that I've had hens get off the nest for hours and most chicks will still hatch. The same for ducklings of other breeds (my ducks left a nest of 20 eggs in the rain and abandoned them for an entire night and 13 still hatched).
If something did happen to her, I'm so sorry. I know the feeling of losing birds too well and it always gets you hard.