Aerial counts and estimates of otter populations in the outer 
Aleutian Islands, 19-27 May 1959 
The following tabulation presents our aerial enumeration and 
estimates of the total number of otters in each area surveyed. 
Otters Estimate of total 
Date Area counted otters in area l 
@ar Lslands 
19 May Attu a) O 
ao Aggattu 8) O 
1" " Alaid 0 re) 
“ " Nizki 0 Oo 
ve er Shemya O re) 
Total Oo 6) 
Rat Islands 
19 May Buldir re) O 
a Kiska 894 1,192 - 1,788 
ts Li! Little Kiska 83 lll - 166 
m Tanadak and 
Tanadak Pass 150 200 - 300 
we Segula 47 63 94 
ih akc Pyramid-Davidof 33 44 = 66 
i. Little Sitkin 50 66 = 100 
ee Rat 270 360 - 540 
" " Amchitka 1,560 2,078 - 3,120 
A Semisopochnoi 393 524 = 786 
Total 3, 480 4,638 - 6,960 
Delarof Islands 
26 May Gareloi 41 ‘55 - 82 
aia Unalga 51 68 - 102 
ks Kavalga 275 367 - 550 
- Ogliuga 112 149 - 224 
— Skugu1-Tag-Ugidak 281 375 - 562 
st Gramp Rock 134 179 - 268 
" " Ilak 49 65 =- #98 
1 " Ulak 352 469 - 704 
* u Amatignak 102 136 - 204 
Total ° 1,397 1,863 2,794 
1/ Considering that 25 to 50 percent of the otters were not seen. 
