Hooded Merganser
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[Photo] Hooded Merganser (Lophodytes cucullatus) male on right, female on left. Hooded Mergansers (female on the left, not to relative scale) at Slimbridge Wildfowl and Wetlands Centre, Gloucestershire, England. Taken by Adrian Pingstone (http://en.wikipedia.org/wiki/User:Arpingstone) in February 2004 and released to the public domain.

The Hooded Merganser (Lophodytes cucullatus) is a small duck and is the only member of the genus Lophodytes (Reichenbach, 1853).

Hooded Mergansers have a crest at the back of the head which can be expanded or contracted. In adult males, this crest has a large white patch, the head is black and the sides are reddish brown. The adult female has a reddish crest, with much of the rest of the head and body a greyish-brown. The Hooded Merganser has a sawbill but is not classified as a typical merganser.

Their breeding habitat is swamps and wooded ponds on the northern half of the United States or southern Canada. They prefer to nest in tree cavities near water but will use Wood Duck nesting boxes if available and unoccupied. They form pairs in early winter.

Hooded Mergansers are short distance migrants and winter in the United States wherever winter temperatures allow for ice free conditions on ponds, lakes and rivers. Although they have occurred as vagrants to Europe, this attractive species is so common in collections that only a ringed bird would be likely to be accepted as anything other than an escape.

They feed by diving and swimming under water to collect small fish, crustaceans and aquatic insects.

A species of fossil duck from the Late Pleistocene of Vero Beach, Florida, was described as Querquedula floridana (a genus now included in Anas), but upon reexamination turned out to be a species closely related to the Hooded Merganser; it is now named Lophodytes floridanus, but the exact relationship between this bird and the modern species is unknown.

http://en.wikipedia.org/wiki/Hooded_Merganser

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