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Male mallards also occasionally chase other male ducks of a different species, and even each other, in the same way. [103] In one documented case of "homosexual necrophilia", a male mallard copulated with another male he was chasing after the chased male died upon flying into a glass window. [103] This paper was awarded an Ig Nobel Prize in ...
Farm-raised mallards have changed the DNA of eastern birds. It may quack like a duck, but science shows eastern and western mallards are different Skip to main content
Deep cup nest of the great reed-warbler. A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a specific structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too ...
Ducks are mysterious, which is part of their attraction. By species, they can appear wildly different from one another — think florid male wood ducks and more subtly colored male ringnecks.
Johann Friedrich Gmelin placed it in the genus Anas with the ducks, geese, and swans. Both the male and female have striking plumages: the male has a black head and barred black body and the female has a white head with a chestnut body. They weigh between 1.09 and 2 kg (2.4 and 4.4 lb) and are between 63 and 71 cm (25 and 28 in) in length.
Mallards, both domestic and wild in particular are notorious hybridizers, know to frequently hybridize within the mallard complex and even outside of Anas. The willingness to hybridize has concerned conservationists as the gene flow from the mallard may pollute pure populations of more vulnerable species such as the Mexican duck. [2]
The action or behavioural tendency of a bird to sit on a clutch of eggs to incubate them, often requiring the non-expression of many other behaviours including feeding and drinking. [54] The adjective "broody" is defined as "[b]eing in a state of readiness to brood eggs that is characterized by cessation of laying and by marked changes in ...
In bi-parental care, the male provides food and the female is a caretaker. Both ensure the survival of the offspring. The female may care for her young by covering them to keep them warm, shielding them from the sun or from rain and guarding them from predation. The male may also feed the female, who in turn regurgitates the food to the chicks.