Unknown nest outcome

On June 9th we discovered a mockingbird nest with four eggs. We visited it again on June 14th. We visited a 3rd time on June 29th and were surprised to see the destroyed nest. Do you think that the eggs hatched and the babies fledged? We had a really bad storm with almost 60-mile winds.

Hummingbird nest destroyed by a crow

Since this nest was destroyed in daylight and not at night I suspect a crow over rats or a cat. That, and I saw a crow swoop through the yard and could here a few calling in the trees.