‘aa 61. Relative Vulnerability Estimates for the Mallaral 
Banding Station 









Manitoba Saskatchewan Mi ashes 
Libau Teo & Last Mt. Rice L. Thief L. a Roseau R => = 
5k NW. Re Pio . ee: i 
foie 4 rf atSe Pres 
Adults cat Lely. 273 o15 
125 156 
Immatures 389 289 459 390 2ho na a 
No. of Recoveries: 
Adults : 
Total 14 52 1O 34 
Miss. Flyway 7 26 10 29 6 5 ty 
Immatures : 
Total 29 15 ZT Tat 26 
Miss. Flyway 10 5 23 37 23 a re 
Recovery Rates 
in Per Cent: 
Adults : 
Total 6.4 4.3 3.7 6.6 8.0 “th 
Miss. Flyway 3.2 2.1 what 5.6 8.0 eon i 
Immatures : 
Total 724 5.2 5.9 10.5 10.8 8.3 11.6 
Miss. Flyway 4.9 alt 5.0 9.4 9.6 5.6 ‘Bip 
Relative 
—Yainerability> 
Total 1.15 1.21 1.61 1.58 1.35 1.62 (2.83) 
Miss. Flyway 1.52 81 tT. 37 1.69 1.20 Late 127 

1/ Mallards were banded at the Canadian stations from August 1-September 9, 
1959 and at the United States stations during August and September, 1959. 
Recoveries indicate shot birds taken during the 1959-60 season. 
2/ The North Dakota records include data from Arrowwood, Lower Souris and 
Des Lacs National Wildlife Refuges. 
3/ Immature recovery rate divided by the adult recovery rate. The figures 
show how many times immatures were more likely to be shot than adults. 
Due to complications resulting from the reconstruction of fire-damaged 
banding records,the data in this table may be incomple te. 
-109- 
