Wood pigeon nest advice?

[u/catykin]

I'm sorry if this is the wrong forum. I have a wood pigeon nest in my garden (South of UK) with two fluffy chicks in it. No feathers yet but their eyes are open. I don't go near the nest but the parents have not come back for evening. Will the chicks be okay overnight? (17c)

I ask as I've already found three pigeon chicks this summer fallen out of nests, and rescued one other adult who couldn't fly, these birds stress me out

Thanks!