Black skimmer Rhynchops niger

                                   
                                                                                
                                                                                
Area|--------1966-1994 trends--------| |--1966-1979---||--1980-1994---|         
     Trend  P    N  (  95% CI  )  R.A.  Trend   P    N  Trend   P    N          
EA    -4.2       21 -14.2   5.8   0.73  -10.1        12   0.1        15         
US    -7.2       26 -16.2   1.9   0.46  -16.9  ***   14  -3.3        19         
SUR   -7.5       26 -17.2   2.3   0.46  -16.9  ***   14  -3.7        19         

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