Gill, Douglas E. 1964 worked our way back but got separated. I got back to our outcropy first and saw Larry way back. Apparently he was still searching the higher cliffs. The sun was setting and it became increasingly cold. My the layers were just not enough and I was shivering. Besides I had only brought a can of pineapple and I was in no mood to eat that. Larry returned and we waited as dusk settled in. When it became dark we heard our first Dark-rump over in the canyon we had gotten to the edge of (Canyon No. 2). We heard another bit, there weren't many. One came into our canyon to the left where Larry had worked and another came into the right, near my one good burrow. We put on our head lamps, Larry went to his burrow and I went to mine. Everything looked quite different at night and I couldn't find mine. When I was in the right area (I thought) the clouds came in and the mist blocked out my land marks. Larry came over having found his burrow empty and he waited for me to find mine. Finally I gave up, because I was so turned around I wasn't sure I was on the right ridge anymore. We were both pretty discouraged because: (1) Although we had found about 30 burrows this afternoon we hadn't found any birds in them, (2) We were having an impossible time trying to locate the burrows we had found, and (3) We hadn't heard more than 6 birds in the entire crater. We decided to go over to Canyon No. 2 where we had heard the most birds. It was still misting and we were slowly getting soaked, contrary to Larry's previous statements liking this to a desert. We finally got to the separating ridge (which I didn't recognize but Larry did) and started working the other side. I wasn't at all enthus- iastic because I just didn't like the idea of working these treacherous slopes and cliffs at night in a mist. I wasn't working very hard and I knew