Advice on what to do if eggs fell out nest and can’t reach it to put back?

Hello, please remove if not allowed. I've been watching this bird nest near my apartment (3rd floor) through my balcony window. Because of the rain one of the eggs fell out of the nest and the other is hanging on the edge of the nest. Does anyone know what to do? The nest is too high to put the egg back in and the other egg is about to fall as well. If anyone knows a number to call to help or knows what to do please advise. I've grown very attached to the birds and nest and have been watching them the past week :, ( any advice appreciated. I also called a local bird rescue with no answer yet.