Table 18.--An abridged Life Table for Inland-banded D 
Cormorants~<I ed Double-crested 
Based on birds banded as young in nesting coloni 
or reported as found dead. es and later shot 
Each 
mortality series (d',) is th 
birds available for study of each age interval. 
age interval starts August 1. The 
e number recorded dead per 1000 banded 
> A 2 ES ©) A "DE (9 (> ee 0 ee 2 CLP) A O59 
Y Numb to b y ae a R a Yortalty——— * 
ear er e rds ecovered Seri Survi i 
Banded Banded StudieaY Available (by age class) 1000 = di) Oey, he sie 
1945 = 0-1 4829 a) nc 
19hh = 1-2 4,829 58 12.0 30.7 if 
1943 - 2-3 4829 21 4.3 18.7 23 
192 - 3-h 4829 11 203 Wye 
19h. dh 5 4829 10 2el 12.1 
19L0 269 5-6 4,785 1h 2.9 10.0 
1939 391 6-7 4516 6 1.3 Tok 
1938 333 7=8 4125 h 1.0 5.8 
1937 198 8-9 3792 hy 1.1 4.8 
1936 651 9-10 3594 2 0.6 3.7 
1935 06 10-11 293 3 1.0 3.1 
1934 237 11-12 2537 0 0. 2.1 
1933 259 12-13 2300 0 's) 2.1 
1932 35 13=1) 20h1 3 1.5 2.1 
1931 579 Wy-15 1696 1 0.6 “0.6 
1930 157 15-16 1117 9) 0 2) 
1929 76k 16-17 960 0 0 0 
1928 196 17-18 196 0 0 oa 
Total 4829 = - 587 123.9 2h1.2 51 
Mean Adult Rate (Years 1-2 to lj-15)- 30.7 117.3 26 
Mean Adult Rate (years 2-3 to l-15)- 18.7 86.6 22 
1/ in years; birds banded in 1928 are available for all age intervals 
~ but represent the last year of banding available for reports of 
birds in age class 17-18 
2/ the number alive at the start of each age interval; based on 
column d! 
3/ per cent per annum; 
associated with the age 
breed or first attempt to breed. 
obtained from dtyrlt | 
at which most of the birds in this species 
This point can be re-examined in . 
