Unfortunately we think that Mum and Dad had abandoned the nest as the very next day we had 4 dead babies. 3 in the box and one in the garden. We had to bury them properly so we got an old egg box and put them in there, before....yes you've guessed it......putting them in the wheelie bin!!!
Then while putting the bins out last night we found another dead baby under the bin. I am just hoping that the other 3 managed to survive. Fingers crossed.