contingat tibi felix somnus!
I was expecting a roar... What a pussy!
I would never expect a magpie to act as crossing guard
That's actually not very far from what it was actually doing -- not so much helping as snacking. Hedgehogs have fleas and suchlike. Here's one where you can't cutely anthropomorphise the situation:I think the bird is used to meeting pancaked hedgehogs on the tarmac and doesn't get it that this one isn't yet edible.