The staff at Loch of the Lowes are pretty certain that the female who arrived on Saturday 30 March is the adult female known as Lady - right on cue, too. There is just a tiny element of doubt because the dark mark in her right iris seems slightly different, but all her behaviours are the same.
I know! I recently read the book about her. She is one astonishing bird.
Off the topic of this thread a bit, but just by way of comparison with the migratory ospreys, I went to the osprey nest that I watch yesterday. I didn't expect that I'd see any ospreys, because we're only just into autumn (if you could call it that). On the nest was Dad, on the low branch was Big Hook and on the left branch leading from the nest was the juvenile. I've seen both adults recently when I've kayaked below the nest. Both birds were down closer to the river, but very close to the nest tree. What a charmed life they live in comparison to the migratory birds.
Lately they have had a problem at night, and when I do get it, it is aimed away from the nest. They think this may be the second or third egg, so it looks like the 1st egg failed. I was fortunate to see the baby a few times before I left for work. The female was feeding it so gently.