In the far northern reaches of Canada, in the deepest ‘Toba region of the Mani, lives a creature of myths and legends… Little is known, of the Northern Wiper, save that she comes only in time of greatest need (say, when we’re trying to photograph wildlife through seriously dirty windows… *Ahem*…)

I will say this about this creature of wonder; she is gorgeous, efficient, and very polite. :)
P.