De Benedictis 1764 231 March 8 Chatham Bay, Cocos Island, Costa Rica. It is I. magnificus. I spent some time helping Dr. Walker catch some fresh water fish he had poisoned. Dr. Weber got 20 of the two species of lizards known from Cocos. I guess I should have stayed in bed. Spent the night on the "Bear". The "Bear" went out for the night so she wouldn't be caught in the Bay by bad weather. Wrote notes in the evening. About 5 porpoise worked along in our bow stream, ois:180 in the poor phosphorescence. They would ride along for awhile, then one drop off, and shoot in from the side. Trails cross crossed and when they shot forward they left a zig-zog trail. Very spectacular. I am very tired and slept like a log. March 9 we got back to Cocos about 6:30 and were able to get ashore shortly after 7:30 miles. Lots of Boobies and Frigatebirds in the bay but little else. Shortly after we got on the beach a dark Woody went roaring out to sea. After fussing around at camp for a while I took Papenfus's pistol and went up the creek about 3/4 of a mile. There were very few birds, calling or visible, along the lower section of the creek, but after climbing a cascade section I came to a flat area grown to green grass with the usual forest on both sides. There were a good number of finches here, feeding in the bushes, and several males were singing. Most of the finches were at treetop level, but they came down to squeaking with no hesitation and I managed to net 5 birds here. As I started squeeking I spotted a tail with a redstart pattern and after realizing