Freakishly Large Birds

So this morning I wake up and take a look outside, and there I see my car, sitting there as normal... with a giant white spot on the hood.

I look again and there's no doubt about it. There's a round white spot about the size of a pancake, just on the near side of the hood. I start wondering what kind of giant, mutant bird could drop such a load on my car as I venture out to find...

Well, turns out that it's just a slightly warmer patch on the hood where the dew didn't collect overnight, and so when I looked at it from my window, it reflected the white clouds in the sky, while the rest of the car was matted by the dew and just looked green.

Curse you, physics!