Common tern Sterna hirundo

                                   
                                                                                
                                                                                
Area|--------1966-1994 trends--------| |--1966-1979---||--1980-1994---|         
     Trend  P    N  (  95% CI  )  R.A.  Trend   P    N  Trend   P    N          
NFD   -8.9       14 -26.3   8.5   2.56   46.4  ***    3 -12.2        12         
S28   -8.8  **   28 -16.9  -0.6   0.34   -5.6        23  -0.5        14         
S30    4.6       16  -2.5  11.7   0.68    6.5         5  -0.6        14         
EA    -8.5  **   61 -15.3  -1.8   0.20   -5.8    *   49  -0.9        32         
WE     2.4       25  -8.1  12.8   0.68    1.2        13   0.2        19         
RE5   -8.7  **   20 -16.4  -1.0   0.71   -9.4        14   0.7        13         
US   -11.6 ***   35 -14.8  -8.4   0.22   -9.2  ***   25  -6.1   **   20         
CAN    0.2       62 -10.1  10.4   0.32   -1.4        41   2.2        38         
SUR   -0.7       97 -10.9   9.5   0.29   -2.1        66   1.0        58         

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