The local ducks have suddenly learned to hang out on rooftops. I've lived in the same house for 18 years, and I've never seen this before, but suddenly, this year, more and more ducks and geese are perching and even sometimes nesting on rooftops.
Here are two pictures I took yesterday of a duck on the house next door, a good 20 feet above the ground. It looks like he is surveying the territory prior to swooping down and nabbing some unsuspecting child.
Be afraid. Be very afraid.