Once upon a time, Huginn and Muninn decided that they were all too worn out from accompanying Odin everywhere and requested a break. To their surprise, the One-Eyed Wiseman was actually quite understanding, granting them an entire week off.
So they left the snow-peaked Scandinavian mountains and headed to sunny Japan for a brief, but deserved vacation. Landing in Ueno Park and causing a bit of ruckus, disrupting the local Zoo's resident herons and geese, the pair interpreted having a relaxing time in an onsen rather loosely.
It's as if they were drunk on...wait for it...mead.
P.S. Crows, not ravens? Corvids! Close enough.