Redhead Aythya americana

Region |-----------1959 - 1988 trends----------|                                
        Trend  N   (  95% CI  ) Sign.  Rel. Abu.                                
 ALA    -0.1    17   -5.7   5.4             1.07                                
 ARI     1.1    37   -3.0   5.1             1.96                                
 BC     -4.9    20  -17.5   7.8            12.89                                
 CAL     0.6   109   -2.4   3.5             2.73                                
 COL     0.8    22   -2.3   3.9             1.07                                
 FLA     2.0    44   -6.7  10.6            33.57                                
 GA      1.7    19    0.0   3.4    *        0.24                                
 ILL     0.5    32   -1.4   2.4             0.28                                
 IND     0.4    27   -1.3   2.1             0.41                                
  IA     0.8    15   -1.0   2.5             0.28                                
 KAN     1.8    29   -1.3   4.9             0.68                                
 LA     -2.7    18   -5.2  -0.3   **        0.71                                
 MD    -11.7    26  -20.9  -2.6   **        7.35                                
 MAS     2.1    19   -3.7   7.8             0.59                                
 MIC    18.2    36   -1.7  38.1    *       12.97                                
 MIS    -1.1    14   -3.7   1.5             0.84                                
 MO      1.4    23   -1.2   4.0             0.47                                
 NJ      0.1    23   -1.0   1.2             1.11                                
 NM     -1.3    21   -4.9   2.2            25.02                                
 NY    -10.8    47  -23.8   2.3            28.90                                
 NC      6.7    32   -2.8  16.3            22.19                                
 OHI     1.8    48   -0.2   3.9    *        0.60                                
 OKL     0.1    19   -1.6   1.8             1.62                                
 ONT     2.6    38   -1.3   6.4             1.35                                
 ORE    -1.3    23   -7.8   5.2             3.34                                
 PA      4.3    35    0.3   8.2   **        4.35                                
 TEN    -0.2    20   -4.1   3.8             1.24                                
 TEX    -4.5    99   -9.8   0.8    *      195.79                                
 VA      2.8    35    0.1   5.4   **        0.74                                
 WAS     6.8    24   -2.0  15.6             3.42                                
 WIS    -0.3    18   -1.4   0.9             0.68                                
 SUR    -3.4  1125   -7.5   0.8            53.56