Tree swallow Tachycineta bicolor

Region |-----------1959 - 1988 trends----------|                                
        Trend  N   (  95% CI  ) Sign.  Rel. Abu.                                
 CAL     0.6    81   -4.0   5.3             6.83                                
 FLA    -0.3    65   -2.3   1.6           319.89                                
 LA     -6.6    20  -16.6   3.5           408.15                                
 NC      1.6    15   -4.9   8.1            18.88                                
 TEX     4.9    43    1.0   8.7   **        0.90                                
 SUR    -0.6   341   -2.4   1.3            30.99