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 64 THE CONDOR , VoL. VI bluff facing the ocean and away iron, the main rookeries of tourres. From the appearance of the nests they had been used for many years. On the accompanying map the rok eries as noted i n 1887 a re desig- nated by numbers, while those of [903 are indicated by letters. Murre Bridge or Great Arch Rock was formerly occupied along the whole ridge. Colony has decreased somewhat. (2) A small colony of Farallone cormorants (Phalacrocorax dilophtes albodliatus) has disappeared. (3) This great murre rookery on the divide of West End was one of the largest on that section of the island.. By standing in a gap "br slit of the ridge one could look down upon hundred of cackling, b61,bing, tourres going to and com- ing from the sea. after feeding hours. Tley :eem to have regular times of the day. when incubating, to relieve each other. This rookery is much reduced. and the birds are very wary. All the isla,d birds have grown more wild, probably because a dog, which did not used to be kept, now accompanies the men and chil- dren wherever they go, and causes the birds to be continually moving on and off their nests. This is particularly the case about the southern part ot the flats and rocks below the keepers' dwellings. Where one could go out ten yards beyond the house among the rocks and study the birds content- edly brooding their eggs, now none are seen, unless it be petrels and anklets among the stone- walled trails, or in burrows. ,i. LOOKING OVER FISHERHAN'$ BAY TO SUGAR LOAF ISLAND