fulvous whistling duck
[19] Birds are sexually mature after one year, and the maximum known age is 6.5 years. Forages for seeds and aquatic invertebrates in flooded areas with emergent vegetation. [20] This species has strong colonising tendencies, having expanded its range in Mexico, the US and the West Indies in recent decades with northerly range expansions into California in late 19th century and rice-growing regions of the U.S. Gulf Coastal Plain in the early to mid-20th century, given its affinity for rice-growing areas. Fulvous Whistling-Ducks sometimes graze vegetation, but unlike Black-bellied Whistling-Ducks, … Some Florida birds still winter in Cuba. Migrants appear in many sorts of wetlands, even in saltmarshes. [19] The population appears to be declining, but the decrease is not rapid enough to trigger the vulnerability criteria for extinction. Cinnamon head and underparts with white lines on the flanks. Before taking off in alarm, they often shake their head sideways. The Fulvous Whistling-Duck is a mix of rich caramel-brown and black, a long-legged and long-necked creature found in warm freshwater marshes across the Americas, Africa, and Asia. A large, oddly proportioned duck with long legs, a long neck, and a rather long bill. [16] Quarrelling birds also have a harsh repeated kee. Like other members of its ancient lineage, it has a whistling call which is given in flight or on the ground. Ducks, Geese, and Waterfowl(Order: Anseriformes, Family:Anatidae). The eggs hatch in about 24–29 days,[5] The downy ducklings are grey, with paler upperparts,[19] and a white band on the neck,[14] and weigh 22–38 g (0.78–1.34 oz) within a day of hatching. It has no recognised subspecies, although the birds in northern Mexico and the southern US have in the past been assigned to D. b. helva,[5] described as having paler and brighter underparts and a lighter crown than D. b. It is sometimes regarded as a pest of rice cultivation, and is also shot for food in parts of its range. Back is dark with cinnamon lines. Other ducks, geese and swans. [4] The fulvous whistling duck forms a superspecies with the wandering whistling duck. [30] Hybridization in captivity is more frequent but limited to other species in the genus Dendrocygna. [7][a] This led to the next available name proposed by French ornithologist Louis Jean Pierre Vieillot in 1816 from a Paraguayan specimen as Anas bicolor. Despite hunting, poisoning by pesticides and natural predation by mammals, birds, and reptiles, the large numbers and huge range of this duck mean that it is classified as least concern by the International Union for Conservation of Nature. [19] They are noisy and display their aggression towards other individuals by throwing back their heads. It flies at low altitude with slow wingbeats and trailing feet, in loose flocks rather than tight formation. See more images of this species in Macaulay Library. Explore Fulvous Whistling-Duck Take Merlin with you in the field! However, in a study in Louisiana, 25% of the diet of incubating females consisted of cereal. Fulvous Whistling-Duck. In South Africa, nests may be within 50 m (160 ft) of each other, and breeding densities of up to 13.7 nests per square kilometre (35.5 per square mile) have been found in Louisiana. Body feathers may be moulted throughout the year; each feather is replaced only once annually. [16] Wandering birds can turn up far beyond the normal range, sometimes staying to nest, as in Morocco, Peru and Hawaii. [33], The fulvous whistling duck has expanded its range in the West Indies, and into the southern US. Ducklings may also eat a few insects. [5], In South Africa, a few records of hybridization with the white-faced whistling duck have been noted in the wild;[28][29] in most parts of southern Africa, the two species breed at different times, bicolor during the dry season (April to September) and viduata during the rains (October to March). The downy grey ducklings leave the nest within a day or so of hatching, but the parents continue to protect them until they fledge around nine weeks later. The side of the neck has fine white stippling and the flanks have long white stripes. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. The Indian subcontinent is the Asian stronghold. In the United States they are rarely found far from rice fields, which provide both food and an optimal water depth for these gangly birds to forage in. Fulvous Whistling-Duck: Large, long-legged, long-necked duck with dark brown back and white V-shaped rump patch. It is found in a broad belt across sub-Saharan Africa and down the east of the continent to South Africa and Madagascar. African birds move southwards in the southern summer to breed and return north in the winter, and Asian populations are highly nomadic due to the variability of rainfall. [14], The fulvous whistling duck is 45–53 cm (18–21 in) long; the male weighs 748–1,050 g (26.4–37.0 oz), and the female averages marginally lighter at 712–1,000 g (25.1–35.3 oz). It breeds in lowland South America from northern Argentina to Colombia and then up to the southern US and the West Indies. Flies with neck held low. However, the status of the two whistling duck species featured in the research is dubious since they are popular ornamental species, so their origin is unclear. Forages for seeds and aquatic invertebrates while wadding in shallow water or swimming. Foraging is by picking plant items while walking or swimming, by upending, or occasionally by diving to a depth of up to 1 m (3.3 ft). Like all ducklings, they are precocial and leave the nest after a day or so, but the parents protect them until they fledge around nine weeks later. [5] In India, the breeding season is from June to October but peaking in July and August. Head is cinnamon with a dark bill. Larger than a Northern Shoveler, much smaller than a Canada Goose; similar in size to a Mallard but with a longer neck and legs. [5], This species is usually found in small groups, but substantial flocks can form at favoured sites. The tail is black, rump and undertail white, and the legs and bill are dark gray. Juvenile comb ducks are bulkier than whistling ducks and have a dark cap to the head. [19] The clutch is usually around ten eggs, but other females sometimes lay into the nest, so 20 or more may be found on occasion. [26] Fulvous whistling ducks show lifelong monogamy; the courtship display is limited to some mutual head-dipping before mating and a short dance after copulation in which the birds raise their bodies side by side while treading water. It walks well, without waddling, and normally feeds by upending, though it can dive if necessary. The typical clutch is around ten whitish eggs. In flight, the wings are brown above and black below, with no white markings, and a white crescent on the rump contrasts with the black tail. The identity of the duck designated as, International Union for Conservation of Nature, 10.2305/IUCN.UK.2016-3.RLTS.T22679746A92827620.en, "A fossil Dendrocygninae (Aves, Anatidae) from the early Pliocene of the Argentine Pampas and its paleobiogeographical implications", "A new genus and four new subspecies of American birds", "Fourteenth Supplement to the American Ornithologists' Union Check-List of North American Birds", "Dendrocygne fauve - Dendrocygna bicolor - Fulvous Whistling Duck", "The technique of noninvasive distant sexing for four monomorphic, "Parasitic helminths and arthropods of Fulvous Whistling-Ducks (, "Hybridisation between White-faced and Fulvous Ducks in the wild: further evidence from South Africa", "Morphology and ecology of the southern African whistling ducks (, "Hybridization in the Anatidae and its taxonomic implications", "Annex 2: Waterbird species to which the Agreement applies", Tribe Dendrocygnini (Whistling or Tree Ducks), https://en.wikipedia.org/w/index.php?title=Fulvous_whistling_duck&oldid=984915731, Native birds of the Southeastern United States, Pages containing links to subscription-only content, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 22 October 2020, at 21:19. Pesticides used on rice fields may also have an adverse impact,[5] causing liver and breast muscle damage even at sub-lethal levels. The whistling ducks, Dendrocygna, are a distinctive group of eight bird species within the duck, goose and swan family, Anatidae, which are characterised by a hump-backed, long-necked appearance and the whistled flight calls that give them their English name.
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