By Nightfall

Published: Sept. 24, 2011, 7:30 a.m.

Autumn officially arrives this week, and that means the days will grow shorter and shorter until the winter solstice on December 22nd. But, an early nightfall has its bright sides, including more time to spot owls in the city. On this week's Cityscape, we'll go owl watching in Central Park, as well as get some tips on taking nighttime photos.