I was riding down along the west side of Lake Washington approaching Renton when I saw something large on a dead tree trunk alongside the road.  With the number of bald eagles and ospreys that I see down there, I was assuming it would be one of them.  However, it was a woodpecker.  I have heard of the pileated woodpecker but had never seen one for real.  It was pulling the trunk apart with abandon and it was huge.  Combine the size with the crest and it looked just like a pterodactyl.  The thing was massive when compared to any other woodpeckers I see.  My phone was not ideal for photos but it did a pretty good job of getting some video.