TABLE F-36,~-Percentage age-class distribution of duck broods, by stratum, southern Manitoba, 1954-63 
Stratum A , Stratum B Total 




Year 









5.0 20.0 17.1 26.4 11.4 
27.9 43.5 39.1 36.7 33.4 
; 50.0 32.4 42.8 27.8 
56.1 15.8 hh 4 26.5 
45.2 9.7 35.4 1349 
34.8 2.2 33.0 6.2 
SL 4.9 47.5 6.7 
59.1 12.1 56.3 12.8 
42,3 15.4 48.7 10.7 
1.7 1.7 43.8 45.2 


TABLE F-37.--Number of broods, by species and area, 
Minnesota, 1960-63 












Species and area 


Blue-winged teal-----------~----- 
13 
Other ducks----------- Ce ee ee 
Subtotal----------------------- 
“wees, Chippewa National Forest: 
Mallard--------------~----------- 114 
Wood duck-~---------~------------- 
Blue-winged teal--~-------------- 
I-10 
Subtotal -------8--- 22 - eee 
Thief Lake Refuge: 
Unidentified------------------u-- 
et 
155 
