bj 
No. less 
Species 
Percent 
Number 
l^f March 
Soouy Tern 
36.3 
66 
11 
Pterodroma externa 
18.1 
33 
23 
Wedge-tailed Shearwater 
7.1 
13 
8 
Bulwer Petrel 
4.9 
9 
8 
Misc. Shearwater/Petrel 
4.9 
9 
7 
Sooty/Slender-billed Shearwater 
b.9 
9 
5 
Pterodroma sp. 
b.k 
8 
8 
Storm Petrel 
3.3 
6 
b 
Blue-faced Booby 
3.3 
6 
3 
Small Pterodroma 
■ 2.2 
b 
4 
Jaegers 
2.2 
b 
4 
Pea-tailed Tropicbird 
1.6 
r 1 
3 
3 
Phoenix/Tahiti Petrel 
1 • 1 
2 
0 
Ped-footed Booby 
1.1 
2 
2 
Misc. Birds 
1.1 
2 
2 
Newell Shearwater •. 
0.5 
1 
Audubon Shearwater 
0.5 
1 
Ju 
Shearwater sp. 
0.5 
1 
1 
White-tailed Tropicbird 
0.5 
1 
1 
Brown Booby 
0.5 
1 
1 
Skua 
0.5 
1 
1 
100 
182 
98 
In this section lies the separation between "north" and "south." It 
is regularly a barren region. The number of species is high for the 
relatively few birds present, but seven species were recorded only once 
or twice. The three days in January, February, and April were on the 
Honolulu-to-Howland course, while the March day was along the approach to 
the Kingman-Palmyra area from 200-100 miles to the north. The afternoon 
of that day was affected by numbers of what were very probably Palmyra- 
based Sooty Terns. The totals for the three days on the Honolulu-to- 
Howland track (over 400 miles from land) are more nearly representative 
of this desert region: linear density of ,319> very few Sooty Terns (11$) 
and Wedge-tails (8$); preponderance of Pterodroma and miscellaneous 
Shearwaters and Petrels (58$) and a sprinkling of accidental birds rep¬ 
resenting both northern and southern avifaunas. 
5° N. \ l4 January; 2b February; 23-25 April 
# Miles of obs. - 
9ol (diurnal) 
IIP (nocturnal, on 14-15 January) 
# Ship days = 
9 
# Species = 
21 
Linear density = 
2.1 
Diurnal 
Nocturnal 
Species 
Percent Number 
Number 
Wedge-tailed Shearwater 
44. 7 ) o£ - 907 
41.8) 56,5 849 
10 
Sooty Tern 
4o 
Sooty/Slender-billed Shearwater 
2.3 48 
i 
