The peak of the kill occurred during round 

 6 (22-26 July) when 5,809 males were taken 

 on St. Paul Island (fig. 1). The percent cumu- 

 lative kill, by date, age, and island is shown 

 in figure 2. 



■— X— 3-YEAR-OLD MALES 

 — o— 4-YEAR-OLD MALES 



5 6 



ROUND NUMBERS 



Figure 1. — Kill of 3- and 4-year-old male seals, by round, 

 St. Paul Island, 1963. 



Figure 2. — Percent 3- and 4-year-old male seals In 

 cumulative kill, by date, Pribilof Islands, Alaska, 1963. 



From 2 July to 5 August, 39,685 male seals 

 were taken on the Pribilof Islands. An addi- 

 tional 2,701 males were taken during the kill 

 of female seals 13 August to 12 September. 

 The total kill of 18,481 4-year-old males by 

 5 August agreed closely with the forecast of 

 18,750 for a kill ending between 31 July and 

 15 August. The data, however, do not permit 

 an accurate forecast of the kill of 3-year-old 

 males. Approximately 18,000 were taken by 

 5 August; a kill of 37,500 3-year-olds by 

 31 July or 50,000 by 15 August was predicted. 



Bull Counts 



Both harem and idle bulls decreased for the 

 second successive year since 1961. The 1963 

 bull counts are given in table 4 by island and 

 by rookery. All bull counts since 1911 are 

 presented in appendix table 19. 



Table 4. --Harem and idle bull counts, by 

 rookery, Pribilof Islands, Alaska, 1963 



Date 



10 July 



11 July 



12 July 



13 July 



14 July 



Gorbatch. 

 Ardiguen. 

 Reef 



Rookery 



Bulls 



Harem Idle 



St. Paul Island 



Total. 



Polovina 



Polovina Cliffs 

 Little Polovina 



Total. 



Morjovi. . . 

 Vostoclmi. 



Total. 



Tolstoi. 

 Lukanin. 

 Kitovi.. 



Total. 



Zapadni 



Little Zapadni. 

 Zapadni Reef. . . 



Total 



St. Paul Island total. 



15 July- 

 lS July 



16 July 



17 July 



St. George Island 



Staraya Artil. 



East Reef 



East Cliffs... 



Total. 



North. . . 

 Zapadni . 

 South. . . 



Total 



St. George Island total 

 Pribilof Islands total 



300 

 152 

 245 



397 



781 

 313 

 280 



354 

 303 

 125 



428 



600 

 398 

 110 



593 



2,071 



11,283 



508 



1,890 



9,540 



Total 



654 

 455 

 370 



825 



1,381 

 711 

 390 



1,101 



3,961 



20,823 



