4 
Leach’s Storm Petrel 
Oceanodroma leucorhoa 
# Obs. 
.527 
.710 
.094 
.011 
.292 
.274 
.000 
.023 
.038 
Linear 
density per 
section 
A southward moving population was present during the survey of the 
northern third of the Grid, but had evidently passed through the Grid 
area by the end of the survey. Ten birds were found associated with a 
pair of Killer Whales on 17 November. The birds were evidently feeding 
on the remains of some unidentified prey that the whales had taken. 
Only one dark-rumped bird was noted during the survey. With greater 
than 95 percent certainty all Storm Petrels sighted were Leach’s. 
Ped-billed Tropicbird # Obs. = 2 
Phaethon aethereus 
Tropicbird sp. # Obs. = 1 
Two Red-bills (l adult, 1?) were seen in Section V on the 20th. A 
poorly seen bird, thought to. have been a Red-tail, was seen in the south¬ 
west division on the 22nd. 
Pintail # Obs. = 32 
Anas acuta 
The single sighting was of a flock of 32 birds flying south in 
Section S on the l6th. 
Old squaw # Obs. = 1 
Clangula hyemalis 
A single female circled the ship on 21 November in Section Z. This 
constitutes the first sight record for the Grid area. 
Black Turnstone # Obs. = 1 
Arenaria melanocephala 
A single calling bird investigated the ship briefly on the l6th in 
the northeast subsection (T). 
Red Phalarope # Obs. = 252 
Phalarope sp. # Obs. = 38 
Total 290 
.000 
.056 
.531 
.000 
.190 
2.895 
.000 
.039 
.000 
Linear density in each section 
The Phalarope concentrations during the previous survey (31 October 
