Miss Lydia, The same day I received your suggestion I was trying to figure out where I could put Harriet and decide if I should let her come and go as she naturally does or keep her penned up with the eggs. I didn't want to upset her enough that she would abandon the nest altogether. I received a call from a terminally ill friend and had to leave the farm. When I left Harriet was on the nest and being protected by 3 adult ganders (Ozzie, George, and Ol' Blue Eyes; we call him Frankie.) I returned 2 hours later and the eggs were gone! No signs or evidence of a predator or the eggs .For predators I have raccoons, possums, and coyotes, but I have never seen them during the day. We also have a few adult Bald Eagles that think I'm running a buffet for them, and several well fed barn cats including one that chose to have her 2 kittens about 6 feet away from the nest. Mama cat and our goose Gracie never seem to mind each other as they went about their days.
Any ideas what could remove 3 goose eggs during the middle of the day with out breaking them or evidence that it was there?