BTO Bird ID video - diving ducks

Dabbling ducks are so familiar, but there is also a group of common ducks that actively dive on freshwater for food. One or other is likely to be encountered on still or moving freshwater or even at sea so let this short film help you to decide which diving duck you are seeing.
Author(s): 
BTO
Free: 
Yes
Available as: 
Online
Keywords: 
wetland wildfowl lakes