Ready to fledge?

It looks like Mrs Blackbird has been successful in the shed, she has 4 fledglings who keep getting up on the edge of the nest to test out their wings. It looks like they might be ready to fly any day now; very exciting. We were worried the swallows might be put off nesting in the shed with the blackbird in there this year, but they are happily going in and out getting one of the nests ready by the look of it. There were 3 swallows all sat together on the beam by the nest the other evening ready to roost.