Help! Let me out!

Oystercatcher egg about to hatch. This is the last remaining egg of the three. There is absolutely no sign of the other two. I suspect as soon as they hatch, they are escorted into dense undergrowth most probably. The other alternative is that some predator took the eggs, but that is unlikely as the nest has been guarded throughout by both birds - one sitting on it, whilst the other perches on a good lookout post nearby.