WILDFOWL COMPARISON
Bean/Greylag Goose | Barnacle/Canada Goose | Ferruginous Duck/Southern Pochard
Lesser/Greater White Fronted Goose | Magpie/Spur-winged Goose | Redhead/Pochard
Ring Necked/Tufted Duck | Ross's/Snow Goose | Red-billed Teal/White Cheeked Pintail
LESSER SCAUP v's GREATER SCAUP
   Click thumbnails to enlarge
Lesser Scaup (Slimbridge 26/05/12) Greater Scaup (Slimbridge 24/03/12)
Lesser Scaup
Greater Scaup
   To aid identification we shall compare various significant parts of the Scaup: -
   The Head, Beak and Eyes
   Click thumbnails to enlarge
Lesser Scaup Greater Scaup
The main differences between the Scaup are:-

The Lesser Scaup has a bump on the back of the head.
The Greater Scaup has a smoothly rounded head.
Lesser Scaup
Greater Scaup
   The Breast and Body
   Click thumbnails to enlarge
Lesser Scaup Greater Scaup
The main differences between the Scaup are:-

The Lesser Scaup is slightly smaller than the Greater Scaup,
  otherwise extremely similar.
Lesser Scaup
Greater Scaup
   The Legs and Feet
   Click thumbnails to enlarge
Lesser Scaup Greater Scaup
The main differences between the Scaup are:-

The Lesser Scaup has Greyish Green Legs and Feet.
The Greater scaup has Greyish Blue Legs and Feet.
Lesser Scaup
Greater Scaup
GENERAL COLOUR COMPARISONS
Body PartLesser ScaupGreater Scaup
HeadBlack with Purple/Green sheenBlack with Green sheen
EyeYellowYellow
BeakPale Blue with Black tipBlue/Grey
NeckBlack with Purple/Green sheenBlack
BreastBlackBlack
UnderbodyWhiteWhite
FlanksWhite with vermiculationWhite
UpperpartsWhite/Grey with vermiculationsPale Grey with Black vermiculations
UndertailBlack/BrownBlack/Brown
TailBlack/BrownBlack/Brown
LegsGreyish GreenGreyish Blue
FeetGreyish GreenGreyish Blue
   Now that we can identify the Scaup, where can we find them at WWT Slimbridge?

   They can be found in the following zones: -
   Lesser Scaup. - Found in the North America Zone.
   Greater Scaup. - Found in the Tundra Zone.