Pagodroma nivea flying back & forth along the cliff, audibly from the nest cavities. The birds very far were seen. Most of these were about the top of the tallest part of the cliff at the N. end. We climbed up the back of the cliff where the slope make a climb feasible. The cliff is about a thousand feet high at this point, and must be 110 1200 feet high at its highest point. The profile of the cliff is as: > so that there appears to be more nest sites high up then come down. We dropped down a ways from the top & found a number of nests, 2 with birds which we took & strangled. Nest sites were numerous, all used - what in more they showed much more sign of past use than those I saw low down on the cliff. There was a heavy incrustation of dropping on the rocks about tentatives. This formed a brownish white layer very much like pack rat droppings on rocks & pka. Dead dicks were common, one nest yielded 6 from previous years. We found one old unhatched egg. Curious usually show signs of current nests actively but again the birds were largely absent. We