4 
Leach's Storm Petrel ( Oceanodroma leucorhoa ) No. Obs.: 59 
storm petrel sp. No. Obs.: 25 
Leach's Storm Petrel 
storm petrel (sp) 
B = 19 (-.158) 
u -- 
X = --- 
S -=.13 (. 138 ) 
V■= 12 (. 130 ) 
T = 8 (. 082 ) 
W = 7 (. 127 ) 
z = 
R = 3 (-025) S = 22 (. 234 ) T = 0 
(J =- V = 0 w = 0 
X =- Y -- Z = - 
Combined : 
R = 22 (.183) 
s = 35 (.37a) 
T = 8 (. 082 ) 
u = 
. 
v = 12 (.130) 
W = 7 . (. 127 ) 
x = — 
Y .= - 
Z = — 
V 
Storm Petrels again appear to be moving into the northern sections 
of the Grid. It is not possible zo predict the origin of these birds 
nor the trend of the species distribution in the grid. The concentra¬ 
tion of birds in Section S is of interest and probably indicates the 
presence of an oceanographic front, i.e., upwelling, in the area. Den¬ 
sities in Section T are strikingly low. All birds classified to rump 
color were white-rumped birds. 
Red Phalarope ( Phalaropus fulicarius ) 
Phalarope species 
No. Obs.: 3 
No. Obs.: 6 
Red Phalarope 
R = 1 (. 008 ) S 
u = —- V 
X = — Y 
2 (.023) T = 0 
0 W = 0 
R 
U 
X = — 
. phalarope (sp) 
1 (.008) S = 3 (.032) T 
V = 0 W 
Y = — Z 
0 
2 (.036) 
Combined: 
R 
U 
X 
2 (. 016 ) s =5 (- 055 ) 
v = 0 
T = 0 
W = 2 (. 036 ) 
z = — 
Nothing can be determined from the distribution shown here except that 
the birds are present throughout the Grid. On the calm days of 28 and 
29 March, 20 birds were recorded outside of the Grid area as the ship 
returned to San Diego B Both within and outside the Grid, phalaropes 
were seen sitting on the water (but more so outside the Grid). There¬ 
fore, it is quite possible that many of these birds were missed in the 
Grid due to rough seas. 
Pomarine Jaeger ( Stercorarius pomarinus ) 
Only one light-phase bird was seen, 
part of Section S on 24 March. 
No. Obs.: 1 
It was recorded in the eastern 
