Waterfowl 4: Fish-eating ducks, divers and grebes

Mergus serrator
Red-breasted Merganser

 Mergus merganser
Goosander

 Gavia stellata
Red-throated Diver

 Gavia immer
Great Northern Diver (Loon)

Podiceps auritus
Slavonian Grebe

 Waterfowl 1: Hooper Swan and geese

 Waterfowl 2: Goose-like duck (Shellduck) and dabbling ducks

 Waterfowl 3: Diving Ducks