120 U. S. BUREAU OF FISHERIES. 



COMPLETE CENSUS OF FUR SEALS AS OF AUGUST lo, 1920. 



Pups, counted and estimated 107,527 



Breeding cows, 3 years old and over, by inference 167, 527 



Harem bulls, counted 4, OGO 



Idle bulls, counted 1,161 



Yearlimrs, male and female, estimated : 



Pups born in 1919 157,172 



Deduct 35 per cent for natural mortality 55,010 



Yearlings, both sexes, beginning 1920 102, 162 



Yearling females, 50 per cent, Aug. 10, 1920 51, 081 51, 081 



Yearling males, beginning of 1920 51,081 



Yearling males killed in 1920 7 



Yearling males, Aug. 10, 1920 .— 51, 074 



2-year-olds, male and female, estimated : 



Yearling females, Aug. 10, 1919 46,447 



15 per cent deducted for natural mortality :_ 6, 967 



2-year-old females, Aug. 10, 1920 39, 480 



Yearling males, Aug. 10, 1919 46,444 



Yearling males killed, fall of 1919 7 



Yearling males, end of 1919 46, 437 



15 per cent deducted for natural mortality 6, 966 



2-year-old males, beginning of 1920 39, 471 



2-year-old males, killed in 1920 360 



2-year-old males. Aug. 10, 1920 39,111 



3-year-o!d males, estirnated : 



2-year-old males, Aug. 10, 1919 33,081 



2-year-old males killed, fall of 1919 214 



2-year-old males, end of 1919 32,867 



10 per cent deducted for natural mortality 3,287 



3-year-old males, beginning of 1920 29, 580 



3-year-old males killed in 1920 18,831 



3-year-old males, Aug. 10, 1920 10, 749 



4-year-old males, estimated: 



3-year-old males. Aug. 10, 1919 13, 596 



3-year-old males killed fall of 1919 820 



3-year-old males, end of 1919 12, 776 



10 per cent deducted for natural mortality 1, 278 



4-year-old males, beginning of 1920 11, 498 



4-year-old males killed in 1920 5,831 



4-year-old males, Aug. 10. 1920 5, 667 



5-year-old males, estimated : 



4-year-old males. Aug. 10, 1919 5, 747 



4-year-old males killed fall of 1919 66 



4-year-old niale.s. end of 1919 5, 681 



10 per cent deducted for natural mortality 568 



5-year-old males, beginning of 1920 5, 113 



5-.vear-old males killed in 1920 106 



5-year-old males, Aug. 10, 1920 5, 007 



