The bird is the word

I expected a slow traffic day yesterday, and I got one, except that for some reason I picked up more than 120 Googlers looking for "digitus impudicus," the Latin term for a common gesture involving one hand (upraised) and one finger (really upraised). The vast majority of them, curiously, came from Germany, where, I was amused to discover, this same gesture is often referred to as "Stinkefinger". [Photo at link possibly NSFW.]

As happens too often, I was unable to ascertain just what caused this, um, Birdalanche; I'm guessing that someone tossed off the Latin phrase and didn't proffer an explanation. (I am #8 on Google.de for this phrase, for this item.)