D ANSERIFORMES 



Tundra Swan 



Cygnus columbianus 

 1991-95 = 61 



-W--W 



WUWMW 



WW-w 



--wW-w 



-W 



Trumpeter Swan 



Cygnus buccinator 



1991-95 = 46 

 TES 



-w 



-W--W 



W 



--WW---W-- 

 -W 



Anatidae 



Swans 



Mute Swan 



Cygnus olor 



1991-95 = 3 



SI (introduced) 



19 



