OK, not birding without clothes, but stripped of binoculars. Since it was raining this morning, I just put on the rain coat and went for my three mile walk without binoculars. I find this a fun and refreshing way to get my Bird RDA sometimes--making me pay attention to the bird sounds around me, rather than just getting lost in my own internal music soundtrack and monologue. Without binoculars I still managed to see or hear 28 species. Best bird was a Field Sparrow on the side of the path--a bird I've only seen on my morning walk a couple times.