Common tern Sterna hirundo



Region |-----------1959 - 1988 trends----------|
        Trend  N   (  95% CI  ) Sign.  Rel. Abu.
 CAL    -1.1    18   -3.0   0.8             0.87
 FLA    -1.2    41   -3.8   1.3             0.41
 TEX    -1.3    30   -4.1   1.4             0.34
 SUR    -1.1   160   -2.6   0.3             0.33