Egg still out...

We're still looking for a chance to get the stray egg back into box 1’s nest. Here’s a video showing the adult bird having found the egg and trying to get it back into the nest but without much success. Unfortunately they have gone a bit overboard with the feathering, using rather large feathers and making the nest rim extra deep...we're still keeping an eye out for both of the adults leaving the nest but really don't think there's much chance of saving the egg now.