Ruddy Turnstone 



Arenaria interpres 

 1991-95 = 10 



Black Turnstone 



Arenaria melanocephala 

 1991-95 = 0; 1957 - LL 3 

 n = 1 



Red Knot 



Calidris canutus 

 1991-95 = 10 



Sanderling 



Calidris alba 

 1991-95 = 16 



- - - t t - t 



t _t t 



t t t 



t - t t - - - - t - - 



t 



t - - t - - - - 





t - t 



t t 



t t 

 t t - - - - t - - 



t t - - t 



t - - t - - - - 



t 



t t t - t 



t t t 



t t t t 



t - t t - t - - t - - 



tttttttt-tt 

 t t t t 



t 

 t 



44 



