LOL.
But have you paid attention to the vids? Birds are in, with flight and everything. So I've been toying around in the back of my mind - and we can only wait to see the game before we can see how realistic this is - with making a raven/falconry mod?
Not completely unrealistic since Command Creature is known spell in the TES system. How completely awesome would it be to have a falcon companion? Me, my trusty wolfhound, a powerful falcon . . . AND A SPEAR!!!!
(And no, I'm not suggesting this will be in the released game).
That'd be awesome, but I wonder if Skyrim's birds are actually full creature objects with full animation sets - it's possible they're more of a visual effect, and never actually interact directly with actors (or the ground). Considering how sophisticated the dragon AI seems to be, though, it's certainly not beyond the realms of possibility.
Creature companions in general (incl. the acquisition of eggs, rearing, etc, depending on how much detail the modder wanted to implement) are a really nice idea in any case. They seem especially appropriate in Skyrim's landscape, for some reason.