Time to fly the nest?

Baby Robins have jumped down from the nest and making their way around the shed.
Wary of going back in now in case one escapes before it is ready to fly.
Apparently they can fly within a day or so of leaving the nest, and I feel confident (hopeful) that if they can fly up to the gap I have left in the window for Mum and Dad then they can fly off to safety.
So......this may be the last day I see my baby Robins 
Hope Mum and Dad stick around the garden though