The babies aren't feathery like that yet. Baby 2, aka HH6 was still an egg last I saw.
Those appear to be the snacks from earlier. Mr Owl has spent the last few weeks putting food up in nearby trees for momma, and now Momma chases him out quickly because he's on food collecting duty even more now that the lil guys are hatching.
The babies will grow up amazingly fast though. It's fun to watch if you haven't seen them grow up in real time before!
I should have gone to sleep 2 hours ago, but I did a quick highlighting. Here is baby HH5, and I marked its egg tooth and its ear is very visible here too.
If you're in desktop mode of the RaptorCAM page, the other bird nerds give good breakdowns of what all is going on. Comments and the user screen caps don't show up on the mobile view. I can't make out half the stuff on my own, so I've been relying on their sharper eyes! 😵💫