Further to my thread yesterday about finding a blue tit chick and putting it back in the nesting box (parents were killed by local cats and chick had not been fed for a couple of days), I haven't seen the chick and I'm pretty sure it died during the night.
I have no way of knowing if it is dead in the box or whether it made another attempt to fly and was captured by the cats. I will need to unscrew the box and take the whole thing down.
Should I take the box down to remove any possible dead chicks and clean it out or just leave it be?
I'm feeling really sad because I think I should have brought the chick into the house yesterday and hand fed it, rather than let someone put it back into the nesting box with other possible dead chicks.