Field Trip Participants: Photo by Patty Campbell.DC Audubon had its 7th annual Fall field trip to Rock Creek Park on Sunday, September 16, and a brilliant day it was, with 51 species identified, including 12 elusive warblers. But I’m getting ahead of my story. How did we do so well? Simple. We did everything right, beginning with our choice of a day following the passage of a cold front, with a sunny sky and winds out of the north (OK, put this down to luck, since our field trip dates are chosen months in advance—but your return visits need not be). We started early, arriving shortly after 7 a.m. at the Ridge, otherwise known as Picnic Area 17/18, and well known to DC birders. The ridge rises sharply above the surrounding city, and together with its north-south configuration, this makes it a very inviting feeding stop for migrants descending from their overnight passage. While there are many approaches to birding a park as large as this one, you can’t go wrong with a start at the Ridge. And the birds cooperated as I have rarely seen in recent memory; the trees were swarming with them and it was very hard to single out one particular flash of feathers and successfully identify it. Welcome to Fall birding, which can be very demanding, and frustrating as well!