De Benedictis 1964 (189) Feb 17 Pintler Suarez, Isla Espanola (Hood) Galapagos. cleaned out all the underbrush. We got into camp about 3 P.M., thirsty and tired. Got even more sunburn than before. Put up the /spectacles/, which showed no sign of molt and was in top breeding con- dition, and thus slept the rest of the afternoon. In evening Dr. Bartholomew went out to the Masked Booby colony to get some night-time Temperature Boobies and everyone went along to watch the fun. The Boobies were most indignant about having the Thermistor probe shoved down their throat, and Carp- enter was crowned by World's best natural Booby snatcher. # of Boobies came into the colony while we were there, but this was very little activity in the Blue foot colony. Very tired, I went to bed early. Feb 18 Apparently rained a little this night as my tarp got wet. Got up late and after breakfast spent can hour in the A.M. writing notes. Very tired. Slept about can hour in the A.M. and then went out around 2 P.M. to try to make a map and some estimation of the seabird colonies. There was a young Green Heron feeding in the lava near the camp, chasing crabs about on the exposed rocks. It caught two, plus the legs of 1 or 2 others, which I watched it. It also took a lot of fish. I saw little else most of the A.M., besides the map. There are two voice types of Masked Booby. One, smaller than the other, calls "swee sweeou," high, throaty. The larger bird gives a loud