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The Mariana mallard was a resident allopatric population – in most respects a good species – apparently initially derived from mallard-Pacific black duck hybrids; [139] it became extinct in the late 20th century. [140] The Laysan duck is an insular relative of the mallard, with a very small and fluctuating population.
Hundreds of kilometres from any other duck and without a mate, he was known as "the world's loneliest duck", [4] although accompanied by a rooster, a chicken and a weka. [2] Trevor was named after Trevor Mallard, Speaker of the New Zealand House of Representatives. [10]
Domestic ducks are mostly promiscuous, where wild mallards are monogamous. Domestic ducks have lost the mallard's territorial behaviour, and are less aggressive than mallards. [7] [8] Despite these differences, domestic ducks frequently mate with wild mallard, producing fully fertile hybrid offspring. [9]
Possible backcross between a Mallard and American black duck All the species within the mallard complex are known to hybridize with other members within overlapping ranges. Mallards, both domestic and wild in particular are notorious hybridizers, know to frequently hybridize within the mallard complex and even outside of Anas.
The Mariana mallard or Oustalet's duck (Anas oustaleti) is an extinct species of duck of the genus Anas that was endemic to the Mariana Islands.Its taxonomic status is debated, and it has variously been treated as a full species, a subspecies of the mallard or of the Pacific black duck, or sometimes as a subspecies of the Indian spot-billed duck.
A duckling is a young duck in downy plumage [1] or baby duck, [2] but in the food trade a young domestic duck which has just reached adult size and bulk and its meat is still fully tender, is sometimes labelled as a duckling. A male is called a drake and the female is called a duck, or in ornithology a hen. [3] [4] Male mallard. Wood ducks.
This is a list of the breeds of domestic duck which have official recognition at national or international level. [ 1 ] Most breeds of duck derive from the wild mallard , Anas platyrhynchos , while a small minority are descendants of the Muscovy duck , Cairina moschata .
Long Boi (before 2018 – April 2023) was an unusually tall male duck that lived by Derwent College, University of York, England.He was thought to be an Indian Runner duck-Mallard cross, standing out among the other ducks on the campus due to his height.