Truly. Deeply. Madly

Somewhere, Alan Moore just sprayed blood from a burst vein in his forehead, and he has NO IDEA WHY...

It's just a little thing, really; a tiny detail, but one that, if gotten right, can avoid throwing certain readers entirely out of the story.

Owls are silent flyers! No, really, they are. The only time you actually hear their wings flapping, is when they are taking OFF from a low surface and struggling for that initial lift. Otherwise, due to the specific shape of their feather barbs, those wings make no noise at all. Also, they do not hoot or scream in flight -- this is because they are ambush hunters, and their prey is very small and very quick. They do not make any noise that can allow the mouse, rat, cat, fox, weasel small dog, or hare they're after to dodge suddenly and possibly get away. Even the ones with five-foot wingspans, like Hedwig, make no noise when they're descending.

They're extremely well adapted to their style of hunting, and so when all those owls fly into the Great Hall at breakfast for deliveries? There isn't a clamour of wings. Not unless the flock is mostly seagulls or crows or pidgeons or something.

Like I said, it's a little thing, but it's still worth knowing.