0 0 9 2 11 2 1 3 1 # OBS in each section The cause of the slight increase over the last survey is not clear. Most birds appeared to be heading south and the distribution within the Grid suggests the southwesterly diagonal migration path that was noted in September and early October surveys. Non-Grid observations north of the Grid area suggest that more birds are present in the offshore waters now, in early November, than were present shortly (mid-late Oct.) after the main stream of birds passed south. One bird was tentatively identified as a Slender-bill (section W). As mentioned under Fulmar, additional Sooty Shearwater sightings are doubtless included under the category "Shear/Pet". Pink-footed Shearwater Puffinus creatopus # OBS = 1 As noted with previous Pink-foot observations on the Grid, a single bird was observed, in conjunction with high counts of Sooty Shearwaters, in section "T". "Shearwater/Petrel" # OBS = 18 "Shear/Pet" is a loose category which encompasses all unidentified or incompletely identified Procellariids. About a dozen of these Shear/Pets were either Sooty Shearwaters or Fulmars. Three birds in the southwest areas were possibly Pterodroma sp. Leach Storm Petrel Oceanodroma leucorhoa 0.0 .031 .752 .203 .553 .432 .310 1.231 .579 Birds/linear mile Three population elements appear to be contributing to the overall Grid picture of storm petrels. 1. A secondary wave of storm petrels from the northern breeding areas is evidently finishing up a southerly pass through the Grid. This is probably a different population than was transient in early October. After a lull in mid-October this present survey recorded high numbers of birds passing south in the central Grid sections. I would suspect that this secondary peak represents the southern populations of the nominate northern race (O. l. leucorhoa) whereas the previous peak represents the northernmost populations. Few south bound birds were found in the northern third (in part covered at night) so I suspect the tail-end of a movement was witnessed. 2. In the southern areas a static, i.e., non-migratory population is evidently present and some collected specimens are in prebreeding condition.