Looks like they ended up eating their children.

I don't think they actually ate them, but the children died on their own somehow?
Just what is that 'adult food', ripe berries that have started ferment?

1:
They aren't anywhere..

Little ones...

2:
Yuchooo! (A sneeze noise bastardized with a yu)

Yuyun!?

3:
This isn't good!
If we eat a mister fuwa fuwa,
we'll feel warmer!

*rustle rustle*

Going to eat easy!

6:

UWAAAAAAAAAAAAAAAA!?

end

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and here I thought they'd melt in the rain and the kids would have survived.

The one Reimu is holding, lookings like it has a ribbon.

That's the koreimu.

They didn't eat them. They just looked at them and freaked out.

Yeah they didn't eat them

Remember, Yukkuri don't have noses