OST 
Table 64.--Sample Mallard Mortality Rates in the Mississippi Valley, 1935-190 
Based on adult’ birds banded by C. J. Goetz in Fulton County, Illinois. Each year starts as 
of September 1. Calculations as in table 62. 
: 
na ene a AOS Dy, oe ae eT Eoet. Rates 
Bs Mortality and Survival Data by Specific Years aie it oe 
m3) | 35 136. 137 q 36 t 39 ThO Te t]2 3 hh | LS hs} Total in cohort 
ST TD AE TT I CS STO ACT cs EA LOCA ST AES OS Se RS nd a cs Psp 
Numbers Reported Shot 
Mar. '33 7 1 hy 3 3 1 - - = ~ 1 ~- ~ 20 - 
Mar. '3h 60 30 18 #5 SS 4 LT = = = = = = 133 49 
Mar. *35 17 3 hy 1 - 1 - - - - - - 26 - 
Fall 135 69 3h 22 13 5 3 3 1 1 - - 151 46 
Dec. 136 1, 56 28 25 Wy it 5 3 3 1 256 LS 
Mar. '38 12 7 6 1 1 1 - - - 28 ~ 
Dec. '38 63 30 15 9 7 5 2 - 131 4,8 
Dec. 139 | 42 16 20 9 6 6 1 100 2 
Total Shot 67 lS oh 16099 Ilo 110.49 O23. 16 ILS 
Mean Mort. 
Alive at Start of Hunting Season (September 1) Rate All Ages 
Mar. '33 20 13 #12 8 5 2 1 1 1 1 1 - - 65 - 
Mar. '3) 123 63 #33 #15 £410 5 1 - ~ - - - - 250 9 
Mar. '25 26 9 6 2 1 1 - - - - - ~ S - 
Fall 135 151 82 8 26 13 8 5 2 1 - ~ 336 Gs 
Dec. '36 256 12 86 58 33 #19 ~=~ «12 7 Ty 1 618 hl 
Mar. '38 28 «16 9 3 2 1 - - - 59 =~ 
Dec. '38 | 131 68 38 23 ~ 2, 7 2 ~ 283 6 
Dec. '39 100 58 ye 22 = 13 7 1 243 hl 
Total 1h3 102-205 367 235 267 251 ll 92 52 29 13 «22 «1869 hh. 7 

Ancaa) Nortel ity Hate All Cohorts . | 
(35) Fe c mt aa - h.7 
