Husted, Dayle N. 1964 50 On one of the flocks that I saw today the petrels were flying very high, many of them above the Sooty Terns. At this heighth their flight is not typical of petrel or shearwater flight. The birds are also difficult to identify except for size differences unless you are close enough to distinguish their characteristics. The Cook's Petrels are also flying different when low to the calm water, they appear to spread their wings out farther and sty more level with the water. Juan Fernandez Petrel also fly more like a Wedgetail when the water is calm. October 12--The sea was calm and the sky was cloudy this morning clear- ing this afternoon. This morning Juan Fernandez Petrel and Cook's Petrels were mainly seen. The Sooty Shearwaters were still heading south. Early this morning Warren saw an adult Brown Booby. Later today we ran into areas where there were many Juan Fernandez Petrel and Cook's Petrels just lingering around. Some of them could be called flosks. One of the flocks I saw was staying very low to the water. It was composed of Juan Fernandez Petrel and Cook's Petrels. They seldom get above the horizon. Because of the calm sea the Petrels are flying more like Wedgetails. They stay low to the water and more level. This afternoon a Skua came by the ship. It was lighter in color than the others I saw this trip. Later on Warren also saw a Pale-footed Shearwater and a solander's petrel. The white bill of the Pale-footed Shearwater showed up very plainly he said. October 13--The sea was moderate and choppy. The sky was cloudy to partly cloudy. Today we had more sightings than ever before. I added two new species to my life list. They were the Mottled Petrel and the Pale-footed Shearwater. The Mottled Petrel looked similar to a Cook's