Menai has fledged.
After threatening to jump off all day, Menai finally decided it was time to test her wings out in earnest at precisely 15:29. She didn't go far, just a hop really to the camera pole.
Soon afterwards, however, she set off for a relatively long-haul flight of over two minutes, finally deciding to try and land on the anti-perch perch on top of the larch tree.
She made it back to the nest soon afterwards with what can be described as a minor misjudgment. She soon untangled herself from the offending rail-twig into the sanctuary of the nest where a few minutes later Monty brought a mullet in for the whole family.
Menai is on the nest perch at the start of the video: