Will blue tit chicks get out of the deep amphora they have nested in, if not what can I do?

Had a similar enquiry yesterday and my answer is here ...

 RE: Can fledglings fly upwards to 

Thanks for the info, hopefully they'll make it!

Thanks for the info, hopefully they'll make it!

Do let us know if these youngsters manage to fledge successfully, luckily there is only one brood per year

The amphora fell over when we checked it yesterday ending up at 45 degrees with the hole against a wall. Still noises from inside and parents feeding. Today nothing - I took a peak inside and no chicks but no evidence of disturbance or bodies. I hope this means they have fledged and made it out but on the other hand maybe the thing fell over because a predator had a go. We've seen a few adults in the hedge adjacent, we'll try and keep an eye out to see if they are still carrying food when they come and go. 

Thanks for the update ... was it quite a lightweight vessel, wouldn't have thought the weight of fledglings caused it to tip, certainly hope not predated ... do keep a watch for fledglings in the hedge!

Pretty heavy I'd have said, and was quite surprised anything would have tipped it over - If you'd have asked before it happened could something in nature tip it over then maybe an assertive cat (although not obviously explaining the disappearance as it is too deep and narrow for any such cat to reach the nest, and where it ended up if anything would have made it harder to reach) having said that, it's quite a tall and thin item on a metal tripod on gravel - how close to being unbalanced it was I don't know and if pretty close then perhaps a corvid or rat could have unbalanced it, or even the birds themselves - clearly the heavier the more likely.. 

Do you have foxes in your garden?

Can't rule it out, I've seen them wandering around the neighbourhood. On the other hand we had our hedgehog camera running for around 4 months late last year and only saw hedgehogs, birds, and cats.