Their breeding habitat is inland lakes and marsh ponds in tundra from Alaska through western Canada to western Montana; few breed east of James Bay and the Great Lakes. Its head is dark brown, and the back and wings consist of black feathers with a light-brown tip, giving a mottled appearance, although the National Parks and Wildlife publication on O. australis refers to bands on each feather rather than a single feather-tip colouration. Small stiff-tailed diving duck with a relatively slender dished bill. , The nest is a shallow depression scraped in the ground and lined with plants and some down feathers. com North American Animals - mamals, birds, reptiles, insects. Any long-term decrease in populations of O. australis would therefore more strongly reflect poor wetland ecosystem health, without the confounding effects of natural drought cycles. Blue-billed Duck: Scientific (Oxyura australis) Order: ANSERIFORMES: Family (Latin) Anatidae: Family (English) Ducks, Geese, Swans: Other name(s) Breeding Regions: AU: Breeding Range Subregions: Australia: Nonbreeding Range Subregions: ... North America (includes the … This book covers all the native and vagrant species of birds seen on the North American Continent. Free shipping. The female will protect her brood, including hatchlings from dump clutches of other females. The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck's common name.  The incubation is 26 to 28 days. Legs and feet are black. An increase of the decline is liable to result in an uplisting to Near Threatened or even Vulnerable status. The chironomid larvae are quite common in inland cumbungi swamps, and therefore make up a large portion of the diet of O. australis during its breeding season. During the nonbreeding season, the head changes from its glossy black to black with grey speckles, and its body changes from chestnut to dark grey. ... LARGE BLUE BILL CARRY-LITE MILWAUKEE/NORTH AMERICA DUCK DECOY.  The blue-billed duck's vulnerable status has been de-listed for the Environmental Protection and Biodiversity Conservation Act 1999, although they are currently recognized as vulnerable in NSW, according to the Department of Environment and Climate Change NSW. Free In-store Pickup. Particularly in the case of vagrant birds in Europe, the identification is complicated by similar-looking Aythya hybrids. They may even spend the winter on lakes in parks, as long as they are not harassed, and will occur even on smallish Caribbean islands such as Grand Cayman. or Buy It Now. They court females by beating their bill against their neck hard enough to create a swirl of bubbles in the water. "A phylogenetic analysis of modern pochards (Anatidae: Aythyini)", "Winter field notes and specimen weights of Cayman Island Birds", "Nuevos registros para la avifauna de El Salvador", "New and Noteworthy Bird Records for Micronesia, 1986–2003", Lesser Scaup ‘’Aythya affinis’’ (Eyton, 1838), "Food habits of diving ducks in the Great Lakes after the zebra mussel invasion", The Nature Conservancy's Species profile for the Lesser Scaup, https://en.wikipedia.org/w/index.php?title=Lesser_scaup&oldid=968078782, Native birds of the Northwestern United States, Articles with unsourced statements from January 2016, Creative Commons Attribution-ShareAlike License, The occurrence of hybridization between lesser and greater scaup in the wild is disputed. The Australian population of blue-billed ducks is estimated to be 12 000, although the creation of artificial wetlands such as water treatment works disguise the number occurring in natural wetlands.  During breeding season, apart from the aforementioned bright-blue bill, the male's head and neck are glossy black, and the back and wings are a rich chestnut. If the birds fly, the most tell-tale sign is the white secondary remiges, whereas in the greater scaup the white extends on the primary remiges also, i.e.  The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck's common name. To counteract these impacts, the Department of Environment and Conservation has devised several strategies to increase the blue-billed duck's population. Recommended Citation. , Oxyura australis is omnivorous, where invertebrates as well as seeds, buds, and fruit of emergent and submerged plants are eaten. , However, it seems that greater scaup eats larger food items on average, and the species are sympatric in part of their range and presumably have been for millennium without any problems due to competition. The lesser scaup drake presents the opposite shape, with a less bulging forehead and a nape that looks strongly curved or even angular due to the small crest.  The scientific name is derived from Ancient Greek aithuia an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin, affinis "related to", from its resemblance to the greater scaup. Male has intense chestnut and black plumage, bright blue bill. , The blue-billed duck is almost entirely aquatic. It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill. 0 bids. Old Antique Vintage Wood Duck Decoy Mallard Scaup Bluebill Hen Pivoting Head.  Any variation in non-captive laying is in accordance to water-levels and hence abundance of food, a fact in contrast to Frith's description of reproduction being tied to the months between September to November. , Two substantial land uses combine to have a significant impact on the blue-billed duck. Female is dark grayish. Non-breeding male looks like female but is slightly dark.  Under this Act, an Action Statement for the recovery and future management of this species has been prepared. But breeding Blue-billed Ducks have similar wing lengths relative to body weight as breeding North While breeding, O. australis is secretive and wary, and it will swiftly and quietly dive under water if threatened, resurfacing a large distance away, rather than escape by flying. Missouri Duck Hunting Prices. Share.  Its range extends from southern Queensland, through New South Wales and Victoria, to Tasmania. After hatching, the young remain in the nest for 1 day, and are then led by the female from the nest. Stifftail, any of several small, round ducks with short wings and long, spiky tail feathers, of the tribe Oxyurini, family Anatidae (order Anseriformes). far towards the wingtip. They move north again in April and May. The bill may give a hint; in the lesser scaup it has a stronger curve on the upperside than in the greater, resulting in a distal part that looks somewhat flattened and wide in the lesser scaup—hence the vernacular name "broadbill". The female's bill is dark grey-brown, and its feet are grey-brown, while the male's feet are grey. The ruddy duck is a duck from North America and one of the stiff-tailed ducks. They mainly eat mollusks such as mussels and clams, as well as seeds and other parts of aquatic plants like sedges and bulrushes (Cyperaceae), "pondweeds", widgeon-grass (Ruppia cirrhosa), wild celery (Vallisneria americana) or wild rice (Zizania). This may pose a risk to these birds because zebra mussels are efficient filter feeders and so accumulate environmental contaminants rapidly. Lesser scaup are often hard to distinguish from the greater scaup when direct comparison is not possible, but in North America a large scaup flock will often have both species present. Hybrid combinations that are known from the wild and resemble the lesser scaup are: In theory, each and every Aythya species is able to produce potentially fertile hybrids with any other, though due to their different ranges and behavioral cues given during courtship most of these hybrids are only known from birds kept in captivity without conspecific mates..   It is apparently a very close relative of the Holarctic greater scaup or "bluebill" (A. marila), with which it forms a superspecies. $26.70 shipping. North American Ruddy Duck.  Both result in smaller habitat sizes suitable to water birds. These birds migrate south (mostly via the Central and Mississippi Flyways) when the young are fledged and return early spring, usually arriving on the breeding ground in May. The blue-billed duck (Oxyura australis) is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). It can be difficult to observe due to its cryptic nature during its breeding season through autumn and winter. Watch. Region: Asia, Europe, North America and rare in Australia Female: Body is mottled brown with a long orange bill tinged with gray. On one hand, pollution and habitat destruction, especially in the wintering regions, has certainly increased since the early-mid 20th century. Explore Birds of the World. In winter, but less so in summer, other aquatic animals—crustacean, insect and their larvae and small fishes—form an important part of their diet.  After the courtship ritual, and a vigorous chase, copulation follows with the female completely submerged. Lesser Scaup. size in Blue-billed, Musk, Maccoa and North American Ruddy Ducks are shown in Table 2. Two syntype specimens of Fuligula affinis Eyton (Monogr. The lesser scaup (Aythya affinis) is a small North American diving duck that migrates south as far as Central America in winter. See more ideas about Waterfowl, Duck, Birds. Antique Vintage Wood Duck Decoy Original Paint UNIQUE BLUE-BILLED Possible RUDDY. , Lesser scaup females show the characteristic darker iris (bright yellow in greater scaup males and females) at closer distances. Mallards will breed with just about anything, and it would seem your bird is the result of a greenhead mating with some manner of blue-billed duck (mallard/pintail is one of the most common n North America), but it's hard to be certain. Carles Carboneras and Guy M. Kirwan. They court females by beating their bill against their neck hard enough to create a swirl of bubbles in the water. $99.90. , Although the lesser scaup has the largest population of any species of diving duck in North America, their population has been steadily declining since the mid-1980s, and reached an all-time low in the early 21sh century.  Further research into the accuracy of using O. australis as an indicator for habitat health, among other waterbirds, is needed, considering its ability to breed every season despite the effects of drought. Breeding Musk and Maccoa Ducks have slightly greater wing length to body weight ratios than Blue-billed and North American Ruddy Ducks. Puddle Duck Foot Puddle ducks are found primarily on the shallows of lakes, rivers, and freshwater marshes. Also, the breeding habitat is mainly in regions little-used by humans; habitat destruction on the breeding grounds is also not considered to be problematic.  O. australis does have a preference for small invertebrates, including molluscs and aquatic insects such as chironomid larvae, caddis flies, dragonflies and water beetle larvae. Lesser scaup are thought to comprise slightly less than nine-tenths of the scaup population of North America. This ducks are also known as the Blue Bill. Creature Profile Share Endangered Species Info List of all endangered animals. Breeding begins in May, but most birds nest only in June, later than usual for North American waterfowl. $28.00. The blue-billed duck is omnivorous, with a preference for small aquatic invertebrates.  At 8 weeks, ducklings are of a similar size to the parents. Vagrant lesser scaup have also been recorded on the Hawaiian Islands Japan, possibly China, and—for the first time on 18 January 2000—in the Marianas, as well as in Ecuador, Surinam, Trinidad and Venezuela (in winter), and Greenland (in summer). North American Birds - Ducks, Geese, Swans. Frith claims O. australis is the most migratory of all Australian ducks. 4 bids. The specimens were collected in North America and came to the Liverpool national collection via Thomas Campbell Eyton’s collection and the 13th Earl of Derby’s collection which was bequeathed to the city of Liverpool. Greater scaup drake in alternate plumage. 5 out of 5 stars (401) 401 reviews Immature blue-billed ducks resemble the adult female, though paler with a grey-green bill. Major threats include drainage of deep permanent wetlands, or their degradation as a result of introduced fish, peripheral cattle grazing, salinization, and lowering of ground water.. The specific name australis is derived from the Latin for "southern", hence Australian. Any long-term decrease in the duck's population would therefore be caused by habitat loss through factors such as salinity and overgrazing more so than drought. Watch. 20 Best Duck Species To Hunt in North America Getting familiar with the numerous types of Northern hemisphere ducks is crucial for all waterfowl hunters. The drakes court the hens in the winter quarters; pairs form shortly before and during the spring migration. About. A decline in bird numbers provides a warning that the natural ecological functioning of the freshwater system is at risk. But especially with juveniles, the bi-coored bill of hybrids is most diagnostic. 0 bids. Thousands winter each year on the Topolobampo lagoons in Mexico, and even in the southernmost major wintering location—Ciénaga Grande de Santa Marta in Colombia—hundreds of birds can be seen. Drakes in eclipse plumage look similar, but with a very dark head and breast, little or no white on the head and usually some greyish vermiculations on the wings. More field research is needed into the average lifespan of O. australis in the wild; although, based on the high number of eggs in a clutch, and maturing 12 months after hatching would indicate a short life span of less than 10 years.  They include retaining sustainable water flows and developing salinity management plans and farm management plans. See more ideas about waterfowl, duck hunting, duck. $15.50. Waterfowl identification may … The male duck exhibits a complex mating ritual. Lesser scaup typically travel in flocks of 25–50 birds and winter mainly on lakes, rivers and sheltered coastal lagoons and bays between the US–Canada border and northern Colombia, including Central America, the West Indies and Bermuda. During breeding bird surveys, lesser and greater scaup are counted together due to the impossibility of identifying the species unequivocally when large numbers of birds are involved. The species is also widespread in the south west of Western Australia. Floats very low in the water, and unlikely to be seen on land. Carboneras, Carles (1992): 121. Ending Dec 13 at 5:29PM PST 6d 23h. [ 2 ] [ 3 ] after the courtship ritual, and gleaming chestnut body the courting repertoire of duck! Nest, at which time the male has greenish-black head, chestnut belly, white breast, yellow eyes a! Shooting in North America and one of the population decline and reduction of this species has been prepared of in... 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