Very Slow Moving

This snail is in the same place it was at the weekend... what do you think its chances are?

Got a bit worried earlier, the baby blue tits had gone silent, very silent. We thought they may have fledged... so I opened the box to find 3 little ones in there but not looking too happy :-(

I put their box back into position and pondered what could have gone wrong?

40 minutes later we heard them again and the parent/s? were seen going in/out the box again. One of them looked very very small so really not expecting all 3 to make it, I reckon they have at least a week to go...?

Thanks for all your comments on yesterday's Sparrowhawk.