'What's that in the birdhouse hole?' I looked up from the dishwasher. 'Er, looks like a bird to me.' 'Yes,' Marek said, 'But the parents have both come out. Is that one of the babies?' We looked out of the kitchen window at the birdhouse on the treehouse opposite. The head looked out further from the hole, then suddenly in a flutter of wings, it emerged and landed on one of the branches of the treehouse tree. Louise gasped. 'It came out!' The parent birds both appeared suddenly, landing close to their fledgling and tweeting their hearts out. Even before my gaze had shifted back to the birdhouse, another baby bird appeared, zigzagging across the garden and coming to rest in the sour cherry tree. The parent birds were still perched on branches of the treehouse tree. Watching. One flew closer to the second baby. Right away a third appeared. No wonder those parent birds have been flying backwards and forwards non stop for weeks now. Three mouths...