Peregrine Eggs: One Missing (1 Viewer)

Any ideas? At a Peregrine nest site which I watch alot we had four eggs in the man made tray/box with gravel. Its situated on a building at least 120 ft sheer with no possible access. Its got a camera which picks up on heat and activity/ movement. Now there are only three eggs. At first I thought Magpie or crow , but the camera would have picked up the activity. Is it possible the peregrine as shuffled it deep into the gravel and is unaware?? Grateful for any ideas.


John.

birds can tell if the egg is infertile, or might be damaged...and will push this egg into a corner, or dispose of it..mark

check under the nest site incase its nocked it of the building, how old are the birds? some birds that are new to brooding do destroy eggs