Canvasback Aythya valisineria

                                   
                                                                                
                                                                                
Area|--------1966-1994 trends--------| |--1966-1979---||--1980-1994---|         
     Trend  P    N  (  95% CI  )  R.A.  Trend   P    N  Trend   P    N          
ALB   -4.2       15 -11.0   2.7   0.31   -1.9        10  13.5        10         
ND    12.4   *   15  -1.6  26.4   0.90    5.3         7  36.1    *   12         
SAS   -3.5       33  -8.2   1.2   3.00    2.4        22  -6.6  ***   23         
S30   -2.8   *   32  -6.0   0.4   1.19    2.1        18  -5.1  ***   23         
S37   -6.1       24 -20.0   7.7   1.55   -5.8        17  16.4        17         
S38    4.8       16 -29.5  39.1   1.12   35.8         9  -3.9        11         
CE     4.1       31  -6.5  14.8   0.28   -0.9        12  14.8        23         
WE    -3.4   *   62  -7.1   0.3   0.89    2.0        35  -5.0  ***   45         
RE6   11.7  **   27   1.5  22.0   0.21    8.0         9  27.7    *   21         
US     8.3  **   37   0.9  15.8   0.27    0.2        12  22.8    *   30         
CAN   -3.5   *   56  -7.3   0.3   1.34    1.2        35  -5.3  ***   38         
SUR   -2.7  **   93  -5.3  -0.1   0.64    1.4        47  -2.5        68         

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