Why a Duck? 

I got a bit nervous on this route. There is a (slabby)ground-fall risk due to the run out between bolts 2 and 3. Since the route eases up considerably before the run out, I wouldn't say this is an R but if 5.8 is near the upper end of your slab-climbing leading ability (like it is for myself), you may want to consider another route. On the plus side, if you do peel at bolt 3, you have a large oaky bush/trees to break your fall.

Hi Guys and Gals,
The guide book calls Viaduct and Why a Duck "contrived, " and that is absolutely correct. We "contrived" to create a couple of relatively safe, easier slab climbs, and here was some prime real estate. They are squeezed, for sure. Call it "grid bolting," if you will, but remember that these routes were drilled by hand, on lead, (as were most, if not all of the routes in this area.) Every bolt required hard work to place. Regarding the names: see "Night at the Opera" by the Marx Brothers.
Pete Lenz