Hooded Merganser

Hooded Merganser
Hooded Merganser
Male
Female
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Subfamily: Merginae
Genus: Lophodytes
Reichenbach, 1853
Species: L. cucullatus
Binomial name
Lophodytes cucullatus
(Linnaeus, 1758)
Synonyms

Mergus cucullatus

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

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 of the duck 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.

Hooded Mergansers are the second smallest species of merganser, with only the Smew of Europe and Asia being smaller, and is also the only Merganser whose native habitat is restricted to North America.

Their preferred habitat for breeding is in swamps and wooded ponds of the northern half of the United States and 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. The male leaves the female soon after she lays her eggs, leaving her responsible for all incubation. After hatching, chicks leave the nest with their mother within 24 hours; they are already able to dive and feed themselves, although they remain with their mother for another five weeks.[2]

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.

A few of these ducks have occurred as vagrants to Europe; however, this attractive species is quite common in captivity,[citation needed] and most birds seen in the wild in Europe are presumed to be escapees.[citation needed]

These ducks feed by diving and swimming under water to collect small fish, crustaceans and aquatic insects. They find their prey underwater by sight.[2]

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.

Contents

Appearance

Female at Walsrode Bird Park, Germany

The hooded merganser is a sexually dimorphic species. The female has a brown body, with a white underside and a light brown crest extending from the back of the head. The male has a similar appearance during nonbreeding season (although his eyes are yellow while the female's are brown). During breeding season, however, the male's plumage changes color: The head, back and neck become black, with white stripes near the chest and tail, and the bird develops a white crest on the back of the head that can be extended to attract mates.[2]

First-winter birds differ from adult females, in having a grey-brown neck and upperparts (black on adult females), and narrower white tertial-edges than adults; all females are dark-eyed whereas in first-winter males, a pale eye is acquired during the winter.[3]


Distribution

Vagrancy to Europe

Although Hooded Merganser is a common species in captivity in Europe, and most recorded in the wild are regarded as escapes, a small number of birds have been regarded as genuine wild vagrants. Britain's current first accepted record is a bird which was seen on North Uist in October 2000.[4]

References

  1. ^ BirdLife International (2004). Lophodytes cucullatus. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 11 May 2006. Database entry includes justification for why this species is of least concern.
  2. ^ a b c "Hooded Merganser Fact Sheet, Lincoln Park Zoo"
  3. ^ Vinicombe, Keith (2002) Time for a rethink Birdwatch 119:16-7
  4. ^ Rabbitss, Brian (2009) Hooded Merganser on North Uist: a return to the British List British Birds 102(3): 122-9

External links

See also

  • Pilling's Pond

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Look at other dictionaries:

  • Hooded merganser — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • hooded merganser — kuoduotasis dančiasnapis statusas T sritis zoologija | vardynas atitikmenys: lot. Lophodytes cucullatus; Mergus cucullatus angl. hooded merganser vok. Kappensäger, m rus. хохлатый крохаль, m pranc. harle couronné, m ryšiai: platesnis terminas –… …   Paukščių pavadinimų žodynas

  • hooded merganser — noun small North American duck with a high circular crest on the male s head • Syn: ↑hooded sheldrake, ↑Lophodytes cucullatus • Hypernyms: ↑merganser, ↑fish duck, ↑sawbill, ↑sheldrake • …   Useful english dictionary

  • Hooded — Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913 Webster] 4.… …   The Collaborative International Dictionary of English

  • Hooded crow — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • Hooded gull — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • Hooded seal — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • Hooded sheldrake — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • Hooded snake — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

  • Hooded warbler — Hooded Hood ed, a. 1. Covered with a hood. [1913 Webster] 2. Furnished with a hood or something like a hood. [1913 Webster] 3. Hood shaped; esp. (Bot.), rolled up like a cornet of paper; cuculate, as the spethe of the Indian turnip. [1913… …   The Collaborative International Dictionary of English

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