in large trees.
Crustaceans, Molluscs fish eggs, Insects and aquatic plants.
They are migratory and most winter in protected
coastal waters or open inland waters at more
They will readily use
nestboxes, and this has enabled a
population to establish in Scotland where
increasing and slowly spreading with the help of
Adult males have a dark head with a greenish gloss
and a circular white patch below the eye, a dark back and
a white neck and belly. Adult females have a brown head
and a mostly grey body.
Males 45-52 cm.
Females 43-50 cm.