- 7 - 
SECTION 2 - NORTHERN GRID 
This section covers only the Northern Grid proper. 
Complete 
diurnal and nocturnal coverage was completed and specimens were 
collected where possible. A total of six full days and nights of 
observation covered 1,530 miles and 144.0 hours (See TABLE III). 
TABLE III 
DAILY AREA COVERAGE 
Date 
No. 
Miles 
No. Hours 
No. 
Birds 
No. 
Species 
Day 
Night 
Day 
Night 
Day 
Night 
Da Z 
Night 
09 
0 
’ 64 
0 
5.0 
0 
68 
0 
3 
10 
127 
135 
12.0 
12.0 
151 
22 
12 
f 
O 
li 
123 
129 
11.9 
12.1 
104 
ii 
ii 
k 
12 
136 
126 
12.0 
12.0 
166 
15 
lk 
k 
13 
134 
124 
11.9 
12.1 
119 
9 
12 
5 
lk 
126 
124 
11.9 
12.1 
374 
7 
lk 
2 
15 
107 
75 
11.7 
7-3 
l48 
1 
16 
1 
Total 
753 
777 
^71.4 
72.6 
10 o 2 ” 
133 
22 + <d+ 
A total of 22 species plus one additional recognizable subspecies 
was recorded (See TABLE IV). The following paragraphs contain dis¬ 
cussions of only those species for which additional data were obtained 
but not included in TABLE IV. 
Wedge-tailed Shearwater : 63$ of those birds identified to color phase 
were light-phase birds w T hile the rest were dark-phase birds. It is 
iii'tei'esting that all but one of the nine dark—phase birds recorded were 
south of l4 degrees North while all of the light-phase birds were north 
of l4 degrees North. 
Sooty/Slender-billed Shearwater : Of the 295 birds for which direction 
of flight was recorded, 45 $ were headed south, 34$ were headed southw'esu, 
and 21$ were headed southeast. This is a similar pattern to t.he early 
migrants (September) found in previous years and may indicate a la^e 
