4 Fork-tails first appeared on the Grid in early December. Two birds were observed on each of the two December surveys (EGS #18 and #19). The high count recorded on the present survey was due to a single sighting of a flock of 35 in section "T." Leach Storm Petrel Oceanodroma leucorhoa # Obs. = 187 .05 .03 .01 .37 .28 0 .32 .55 .43 Birds/linear mile by section An evidently rapidly moving population (probably a northern one) passed south through the Grid in late November (see EGS #17). The early December survey found moderate numbers on the Grid, concentrated in the northern and northeastern sections. The early December birds I take to be chiefly migrant stragglers and possibly winter "pseudo-residents" from the northernmost breeding populations. By late December numbers over the entire Grid reached an all-time low. The present survey found the same low densities in the northern sections but densities in the southern third were significantly higher. I suggest that the birds now infil- trating the southern Grid are from post- or currently breeding popula- tions on Guadalupe and/or other sites to the south of the survey area. Red-tailed Tropicbird Phaethon rubricauda # Obs. = 1 An adult was observed in section "U" on the 8th. (The forthcoming Annual Summary will discuss the distribution of the two tropicbirds on the Grid in more detail.) Red Phalarope (and Phalarope sp.) Phalaropus fulicarius # Obs. = 44 .01 .01 .15 .28 .05 0 Birds/linear mile 0 .03 .04 by sections The distribution of phalaropes was again found to correlate better with the presence of slicks or "windrows" rather than any specific geo- graphic region. The three collected birds were all females. (See other reports for a discussion of the sex ratio problem.) Glaucous-winged Gull Larus glaucescens # Obs. = 13 .04 .01 0 .01 0 .02 .02 .05 .01 Birds/linear mile by section All sightings appeared to be first-winter birds; all were following the vessel. Numbers have increased slowly since November. Unlike the