The Gadwall is similar in size and shape to a mallard, although it is a much rarer dabbling duck. Both sexes have a small white wing patch which shows in flight. The drake is mainly grey with a black bill and black feathers under the tail. The duck is mainly brown.
Habitat
Ponds, lakes and marshes. Feeds upon mainly aquatic plants and seeds plus a few insects and molluscs.
Reproduction
The nest is a hollow lined with plant matter and some down., often on an island or near water. 5 - 15 cream coloured eggs are incubated by the duck for 28 days.
Behaviour
Uncommon, often seen with Pintail and wigeon. Rarely congregates in flocks and unlike other surface feeding ducks often dives.
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