1 
# 
TABLE 5 
DIURNAL DENSITY OF SPECIES GROUPS 
Species Group 
5 - 12 , 20-25 April 
2 and 15 April (near Oahu 
- Johnston) 
No. Birds 
Sq. Mi. 
Est. Pop.* 
No. Birds 
Sq. Mi. 
Est. Poo.* 
Shearvater- 
Petrel 
2, 515 
0.826 
4 i ,280 
848 
2.058 
101,900 
Terns 
1,826 
0.400 
20,000 
1,787 
2.864 
145,200 
Tropicbirds 
15 
0.004 
200 
1 
0.002 
100 
Boobys 
51 
0.010 
500 
72 
0.175 
8,650 
Storm Petrels 
159 
0.047 
2,500 
4 
0.019 
950 
Prigatebirds 
1 ^ 
0.002 
100 
0 
0.000 
0 
Total Birds 
4,575 
65,000 
2,748 
255,000 
* for a 50^ 000 
sq_. mile 
area. 
TABLE 4 
SPECIES GROUP PERCENTAGE OF TOTAL BIRDS 
Species Group - 5 - 12 , 20-25 April . 2 and 15 April (near Oahu - Johnston) 
Percent 
Percent 
Shearwater-Petrel 
■ 55 
51 
Tern 
4 o 
65 
Tropicbird 
00.5 
00.o 4 
Booby 
01 
05 
Storm Petrel 
05 
00.1 
Frigatebirds 
00.5 
00 
