Fledging - advice & update!

[spottydog]

Hi - you may recall my posts last week about having cut back a bush to discover a nest of baby birds. The following days I posted updates and by this morning there was was one fast-growing fledgling. Seemed a bit big for the robin I had thought it was.

HOWEVER..... disaster this afternoon.. after breezy winds the nest had become dislodged and come apart. When I looked there was no baby inside and so I searched around, eventually finding it among leaves and twigs at the shallow end of the pond where it had fallen - luckily dry.

I have shored up the nest as best as I could among the twiggy thatch and put the baby back - he was squawking quite a bit and then I was met with what looked like a mother blackbird or thrush shouting at me. I did my best and left. I can't tell if the parent is visiting the nest as they can enter the bush in so many hidden ways. The baby had some stubby feathers but still a bare rump. Luckily he was still warm. I have read that fledglings are on the ground at 9 days and parents look after them but as the ground under the nest is on a severe slope and the pond is directly beneath it, I'm loathe to put him back on the ground as he will probably end up back where he was. As the nest was split apart I assume he fell out and was not ready to come out. I've tried to mould it back together and put a fan of twiggy growth under it in the hope that it will stay put. Had to to it all very quickly to try to let mum back asap.

Any advice?!
Leona