Figure 12. 



LESSER SCAUP AND GREEN-WINGED TEAL DAYS OF USE 



MISSISSIPPI RIVER 



LESSER SCAUP 



GREEN-WINGED TEAL 



POOL 24 



1 < r . ' 60 ! cl 64 I 66 I 68 I 70 



59 61 63 65 67 69 71 73 75 



YEARS 



156 



