Aliens?
Well, if it’s Pennsylvania it must be penguins.
Or maybe pirates.
OK, how about skunks?
Pelicans?
Nope!
I’ll take racoons, leaving you with only three answers.
A heretofore undiscovered species of man-eating centipede?
… Actually, scratch the silly bit at the beginning, I’m seriously guessing bigass centipede.
You saw that I already guessed orphans, right?
A duck.
A dry, leafy branch twitching in the wind.
Or the bones of a burglar who got that far and could never get out.
Those occasional news stories give me the willies…
Bricks?
Chipmunks.
Do you consider owls to be birds?
String, or nothing!
Puppies.
Fishers?
We’re quickly running out of possibilities here.
Did you early people make a joke, or do you think the birds are called “chimney sweeps”? They’re chimney swifts.
But they don’t make a scratching noise so much as a PEEPEEPEEPEEPEEEPEEPEEP… you wouldn’t confuse them.
Not pelicans, you say? Rats!
How about honey badgers?
Flying bear-bat. But only one of them.
Rats.
Churches!
Lead!
Lots of roaches?
Cthulhu?
Bees?