Dmv Wichita Ks Appointment, Epsom Salts For Plants, Garage Door Clicks But Won't Open, Best Tasting Vegan Protein Powder Canada, Best Pencil Sketches To Draw, How To Fry Eggplant Without Flour, Change Default Folder Icon Windows 10, " /> Dmv Wichita Ks Appointment, Epsom Salts For Plants, Garage Door Clicks But Won't Open, Best Tasting Vegan Protein Powder Canada, Best Pencil Sketches To Draw, How To Fry Eggplant Without Flour, Change Default Folder Icon Windows 10, " /> Dmv Wichita Ks Appointment, Epsom Salts For Plants, Garage Door Clicks But Won't Open, Best Tasting Vegan Protein Powder Canada, Best Pencil Sketches To Draw, How To Fry Eggplant Without Flour, Change Default Folder Icon Windows 10, " />

[117], The mallard is considered an invasive species in New Zealand,[22]:505 where it competes with the local New Zealand grey duck, which was overhunted in the past. [22]:506 More similar to the female mallard in North America are the American black duck (A. rubripes), which is notably darker-hued in both sexes than the mallard,[34] and the mottled duck (A. fulvigula), which is somewhat darker than the female mallard, and with slightly different bare-part colouration and no white edge on the speculum. The mallard (/ˈmælɑːrd, ˈmælərd/) (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurosiberia, and North Africa and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Argentina, Chile, Colombia, the Falkland Islands, and South Africa. However one threat to their populations includes hybridization with other ducks. [21], Due to the variability of the mallard's genetic code, which gives it its vast interbreeding capability, mutations in the genes that decide plumage colour are very common and have resulted in a wide variety of hybrids such as Brewer's duck (mallard × gadwall, Mareca strepera). The wild mallard was eaten in Neolithic Greece. He gave it two binomial names: Anas platyrhynchos and Anas boschas. [27] While most are not domesticated, mallards are so successful at coexisting in human regions that the main conservation risk they pose comes from the loss of genetic diversity among a region's traditional ducks once humans and mallards colonise an area. [84] It is possible that this behaviour allows the female to evaluate the strength of potential partners. [11] This is quite unusual among such different species, and is apparently because the mallard evolved very rapidly and recently, during the Late Pleistocene. [12] Mallards and their domesticated conspecifics are also fully interfertile. [95], The predation-avoidance behaviour of sleeping with one eye open, allowing one brain hemisphere to remain aware while the other half sleeps, was first demonstrated in mallards, although it is believed to be widespread among birds in general. [122] It is one of the successfully translocated birds, after having become nearly extinct in the early twentieth century. Mallards are very adaptable, being able to live and even thrive in urban areas which may have supported more localised, sensitive species of waterfowl before development. [85], The drakes that end up being left out after the others have paired off with mating partners sometimes target an isolated female duck, even one of a different species, and proceed to chase and peck at her until she weakens, at which point the males take turns copulating with the female. [10], Mallards frequently interbreed with their closest relatives in the genus Anas, such as the American black duck, and also with species more distantly related, such as the northern pintail, leading to various hybrids that may be fully fertile. [115] If this continues, only hybrids occur and in the long term result in the extinction of various indigenous waterfowl. Mute swans (Cygnus olor) have been known to attack or even kill mallards if they feel that the ducks pose a threat to their offspring. There are webbing among the toes, but rarely scuba diving. They’re also found in saltwater and brackish water and are commonly found in wetlands. [75][76], Egg clutches number 8–13 creamy white to greenish-buff eggs free of speckles. It is 50–65 cm (20–26 in) long – of which the body makes up around two-thirds – has a wingspan of 81–98 cm (32–39 in),[22]:505 and weighs 0.72–1.58 kg (1.6–3.5 lb). Its iconic green head sits atop a white neckband that sets off a chestnut-colored chest and gray body. Mallard usually inhabits freshwater lakes, and also flocks in rivers, lakes, reservoirs, Gulf and coastal tidal flat. [70] It usually nests on a river bank, but not always near water. The mallard is 50–65 cm (20–26 in) long, of which the body makes up around two-thirds the length. There, and elsewhere, mallards are spreading with increasing urbanisation and hybridising with local relatives. [90] The most prolific natural predators of adult mallards are red foxes (which most often pick off brooding females) and the faster or larger birds of prey, e.g. It is a very adaptable species, being able to live and even thrive in urban areas which may have supported more localised, sensitive species of waterfowl before development. Also, the population size of the mallard is very large. [7] It was derived from the Old French malart or mallart for "wild drake" although its true derivation is unclear. Mallard (male) Mallard (female) Mallard (male) Scientific name: Anas platyrhynchos. [55] A drake later named "Trevor" attracted media attention in 2018 when it turned up on the island of Niue, an atypical location for mallards. [101] Complete hybridisation of various species of wild duck gene pools could result in the extinction of many indigenous waterfowl. In fact, the mallard is thought to be the most abundant and wide-ranging duck on Earth. [101] The wild mallard itself is the ancestor of most domestic ducks, and its naturally evolved wild gene pool gets genetically polluted in turn by the domesticated and feral populations. [65] During the breeding season, male birds were recorded to have eaten 37.6% animal matter and 62.4% plant matter, most notably the grass Echinochloa crus-galli, and nonlaying females ate 37.0% animal matter and 63.0% plant matter, while laying females ate 71.9% animal matter and only 28.1% plant matter. Almost all domestic duck breeds derive from the mallard, with the exception of a few Muscovy breeds. Its bill soon loses its dark grey colouring, and its sex can finally be distinguished visually by three factors: 1) the bill is yellow in males, but black and orange in females;[30][self-published source] 2) the breast feathers are reddish-brown in males, but brown in females;[30] and 3) in males, the centre tail feather (drake feather) is curled, but in females, the centre tail feather is straight. This maternal vocalisation is highly attractive to their young. [33] The female gadwall (Mareca strepera) has an orange-lined bill, white belly, black and white speculum that is seen as a white square on the wings in flight, and is a smaller bird. "[71], Mallards usually form pairs (in October and November in the Northern Hemisphere) until the female lays eggs at the start of the nesting season, which is around the beginning of spring. [81], During the breeding season, both male and female mallards can become aggressive, driving off competitors to themselves or their mate by charging at them. [96], Since 1998, the mallard has been rated as a species of least concern on the IUCN Red List of Endangered Species. [3] The latter was generally preferred until 1906 when Einar Lönnberg established that A. platyrhynchos had priority, as it appeared on an earlier page in the text. [22]:507 Male mallards make a sound phonetically similar to that of the female, a typical quack, but it is deeper and quieter compared to that of the female. [28] Its legs and bill are also black. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae. Feeding ducks like the mallard is a popular pastime and, for many, a first introduction to the UK's wonderful wildlife. Download preview. It is highly gregarious outside of the breeding season and forms large flocks, which are known as "sordes.

Dmv Wichita Ks Appointment, Epsom Salts For Plants, Garage Door Clicks But Won't Open, Best Tasting Vegan Protein Powder Canada, Best Pencil Sketches To Draw, How To Fry Eggplant Without Flour, Change Default Folder Icon Windows 10,