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Topic: Torrent Duck

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Andean Goose

	Sylvan Heights
		The Torrent Duck lives in the fast-flowing mountain rivers of the temperate and subtropical vegetation zones along the Andes range.
		Torrent ducks eat mostly stonefly larvae, feeding on mayfly larvae and mollusks to a lesser extent.
		The Torrent Duck population is very vulnerable due to the specific habitat required and the limited amount of the food source normally found within that habitat.
	www.sylvan-heights.org /torrent_duck.php (850 words)

	PROJECT BACKGROUND
		In Venezuela, the Torrent duck is distributed from the northern part of the state of Mérida to southwest Táchira.
		The torrent duck lays 2 dull buff eggs with possibly the longest incubation period in the Anatidae family (Scott 1954, Gomez-Dallmeier’s and Cringan 1989, Callaghan 1998).
		Due to the fact that the Torrent duck is a species locally distributed in restricted areas, its populations will naturally consist of only a few individuals, putting the total population of this species in Venezuela between a minimum of 100 and a maximum of 1500 individuals (Rodríguez and Rojas-Suárez 1999).
	www.cecalc.ula.ve /BIOINFORMATICA/lamucuy2000/Torrent.htm (1018 words)

	Torrent Duck - Wikipedia, the free encyclopedia
		The Torrent Duck (Merganetta armata) is a member of the duck, goose and swan family Anatidae.
		Male Torrent Ducks have a striking fl and white head and neck pattern and a red bill.
		Males of the southern nominate subspecies, the Chilean Torrent Duck, have a grey back and flish underparts with a chestnut belly.
	en.wikipedia.org /wiki/Torrent_Duck (414 words)

	Andean Birding - birdwatching, Andes and Amazon, bird conservation, ornithological research
		In general, Torrent Ducks are not disturbed by the presence of human settlements but are highly impacted by oil and chemical spills.
		The Torrent Duck is uncommon to locally fairly common along swift, rocky rivers and larger streams throughout the Andes.
		Torrent Ducks were found on all 4 rivers during the study.
	www.andeanbirding.com /html/news_view.php?id=41 (396 words)

	Anseriformes; Ducks, Geese, Swans and Screamers
		Other characteristics which distinguish it from the majority of ducks and geese are a partial moult of the flight feathers, and the fact that copulation occurs on land and not on the water.
		Ducks are smaller, more colourful and even more familiar than their relatives, the geese.
		Dabbling ducks are favourites of hunters and are protected to a certain extent in many countries to prevent there being too many killed.
	www.earthlife.net /birds/anseriformes.html (2592 words)

	Waterfowl page
		There are ducks throughout mid-latitudes around the world, with swans and geese at upper latitudes both north and south.
		In many ducks there is strong sexual dimorphism, with males sporting conspicuous and classic patterns most of the year (except for a brief "eclipse" plumage during wing-molt) and females often dressed in camouflage patterns.
		The Torrent Duck (left) is silhouetted against the turbulent Urubamba River in the Peruvian Andes; a close-up of the same shot (lightened in PhotoShop) proves it to be a white-headed male.
	www.montereybay.com /creagrus/ducks.html (1153 words)

	Tufted duck
		Tufted ducks are one of the most common diving ducks.
		The drakes tend to collect together in small groups on the open water while the ducks are incubating.
		Keeping in touch: These ducks are usually quiet, except in the breeding season when males make a musical whistling call while courting females.
	www.bristolzoo.org.uk /learning/animals/birds/tufted-duck (339 words)

	Torrent Duck (Merganetta armata)
		The Torrent Duck is distributed in the Andes of South America from Venezuela and Colombia south to southern Chile and Argentina and into Tierra del Fuego.
		It is found in fast-flowing mountain rivers and streams where it forages for aquatic insects, molluscs and possibly some fish by diving into the torrents and probing amongst the rocks.
		This is a sequence showing the mating of this pair of Torrent Duck.
	www.arthurgrosset.com /sabirds/torrentduck.html (378 words)

	Harlequin Duck: Wildlife Notebook Series - Alaska Department of Fish and Game (Site not responding. Last check: 2007-10-08)
		The western harlequin duck breeds from northeast Siberia across to arctic Canada, throughout most of Alaska and British Columbia, and sparsely in the Rocky Mountain region of the U.S. as far south as California.
		Harlequins are one of a few unrelated duck species throughout the world that have become “river specialists.” During the breeding season, the South American torrent duck, New Zealand blue duck, African fl duck, and harlequin seek rapidly flowing streams and rivers for nesting and rearing young.
		Harlequins are better able than other ducks to contend with strong currents, spending a greater proportion of their foraging time under water among current-swept rocks and boulders.
	www.adfg.state.ak.us /pubs/notebook/bird/harlequn.php (1462 words)

	A PHYLOGENETIC ANALYSIS AND CLASSIFICATION OF RECENT DABBLING DUCKS (TRIBE ANATINI) BASED ON COMPARATIVE MORPHOLOGY
		Salvadori's Duck (Sal- vadorina [Anas] waigiuensis) was included in Anas by Delacour and Mayr (1945), but earlier au- thors placed it in a separate subfamily Merga- nettinae with Merganetta (Salvadori 1895, Phil- lips 1926), and others retained it as a monotypic genus of problematic relationships (Mayr 1931, Peters 1931, Kear 1975).
		Within the Pacific complex, the Philippine Duck (A. luzonica) is the sister-group to a terminal clade in which the Pacific Gray Duck (A. superciliosa) is the sister-group to the spot-billed ducks, here considered to comprise two species (A. poecilorhyncha and A. onorhyn- cha).
		The classification of A. querquedula with the blue-winged ducks rested largely on the gray forewing of the species, a character that differs from the less extensive, powder-blue forewing of Spatula and that evidently was de- rived from the light gray wing-coverts of the green-winged and spotted teals.
	elibrary.unm.edu /sora/Auk/v108n03/p0471-p0507.html (17018 words)

	Animal Collection
		One animal that lives in the mountains is the Torrent duck.
		The Torrent duck has a reddish-brown belly and stripes on its back and green patches on its wings.
		The Torrent duck uses his beak to get food from the bottom between rocks.
	www.greece.k12.ny.us /ls/grade4/collecti.htm (355 words)

	Perching duck - Wikipedia, the free encyclopedia
		The perching ducks ("Cairininae" or "Cairinini") were previously treated as a small group of ducks in the duck, goose and swan family Anatidae, grouped together on the basis of their readiness to perch high in trees.
		It has been subsequently shown that the grouping is paraphyletic and their apparent similarity results from convergent evolution, with the different members more closely related to various other ducks than to each other (Livezey 1986).
		Comb Duck Sarkidiornis melanotos: Tadorninae or basal Anatinae?
	en.wikipedia.org /wiki/Perching_duck (287 words)

	birding facts Birding Resources by the Fat Birder (Site not responding. Last check: 2007-10-08)
		The Freckled Duck (Stictonetta naevosa) is a moderately large, broad-bodied duck native to southern Australia.
		During a period of 25 years (1971-1995) a population of goldeneye ducks Bucephala clangula breeding in up to 85 nest boxes was studied in a part of the Ostholstein lake district in Northern Germany...
		Paintings of ducks in various stages of plumage, photos of wings, and descriptions of distinguishing characteristics have been included as an aid to identification of birds in hand and in flight.
	www.fatbirder.com /species_and_families/non_passerines/anatidae.html (2644 words)

	Blue Ducks News
		Yes, there is the blue goose, the blue-winged teal, the bluebill duck, the blue-winged goose, and in Argentina there's the Argentinean bluebill duck.
		It's alternative name is Mountain Duck, and it's a native of New Zealand, inhabiting fast-flowing mountain rivers and "behaving much like the Neotropical Torrent Duck."
		And, if you were wondering what the call of a Blue Duck sounds like, the identification guide says the male makes a shrill, whistled "whio" or disyllabic "whi-whio," while the female utters a low, rattling growl.
	www.brevardblueducks.com /News-Whats_A_BD/news-Whats_a_BD.html (243 words)

	White-winged wood duck
		Lifestyle: White-winged wood ducks live deep in the forest where streams, pools and marshes are found.
		They are difficult to find in the wild as they spend the days perched on high trees.
		Albinos (all-white plumage) are common in the Sumatran population of white-winged wood ducks.
	www.bristolzoo.org.uk /learning/animals/birds/wood-duck (224 words)

	Fantástico Sur - Birding & Nature - Patagonia, Chile. (Site not responding. Last check: 2007-10-08)
		Striking birds such as lesser rhea, Andean condor, torrent duck, and Magellanic woodpecker.
		The rivers support a population of torrent duck, whilst other species present here include Austral pygmy-owl, striped woodpecker, rufous-tailed plantcutter and dark-faced ground-tyrant.
		We will scan the cascading upland waters for torrent duck and, as we gain altitude and as the land becomes more arid, we shall seek little-known species such as yellow-bridled finch and the rare white-throated caracara.
	www.fantasticosur.com /2005/bw_paine.html (676 words)

	Observations of Behavior of the Andean Torrent Duck
		Farther down river a duck and a drake were encountered on June 24.
		In mid- stream the drake pursued the duck and made several attempts to grab the feathers of her back with his bill.
		The efforts of one drake to reach the duck were frustrated by the other which successfully maintained his position between the two and never allowed the aggressor to approach more closely to the duck than two meters.
	elibrary.unm.edu /sora/Condor/files/issues/v067n06/p0535-p0535.html (521 words)

	Duck Hunt Remix - Repercussions of Fowl Lamentation
		Please be sure to leave the torrent open after completion to help see the file to others :(.
		Not only did Duck Hunt help introduce the majestic power of the NES, but it set the model that games would be forced to live up to for years to come.
		At the forefront of the videogame remix community is a group of remarkably talented individuals constantly pushing the boundaries of what is accepted as a 'game remix'.
	duck.herograw.org (354 words)

	Asociación Colombiana de Ornitología - ACO (Site not responding. Last check: 2007-10-08)
		Between July 1993 and December 1994, we estimated the population size of the Torrent Duck at the Ucumarí Regional Natural Park, characterized its habitat, and described some aspects of its feeding habits and diet.
		The diet of the Torrent Duck, determined from examination of feces, was dominated by immature aquatic insects, particularly Trichoptera.
		Although the diet was similar in composition to that of Rainbow Trout caught in the river, the null hypothesis of complete niche overlap among these species was rejected; this discards the likelihood of interspecific competition for food between them.
	www.ornitologiacolombiana.org /rev_1_naranjo.htm (517 words)

	IWWA
		The fact that the white-headed duck lays large clutches of eggs was in its favor.
		However in 1998, a grant previously made to support the eventual establishment of torrent ducks in captivity was revived and refocused.
		While establishment of the torrent duck in captivity in Venezuela is an eventual goal, this goal is secondary to the conservation of this species in the wild.
	www.wildwaterfowl.org /conservation/projects.htm (4816 words)

	Whats News (Site not responding. Last check: 2007-10-08)
		Auckland Zoo has successfully bred its sixth native whio (blue duck) in less than twelve months, and more are expected to join the healthy young hatchling shortly.
		The Zoo is also behind a nationwide challenge to raise awareness and money to fund conservation efforts for this endangered torrent duck.
		The 10 buck duck challenge issued this month as a team effort with the Zoo's Conservation Fund, Zoo Education staff and the Central North Island Blue Duck Trust, aims to raise public awareness about the duck's endangered status.
	www.aucklandzoo.co.nz /aucklandzoo/news_item.php?id=1130383632&archiveYear=&page=1 (472 words)

	Torrent duck - AVES DE CHILE
		This duck, of slender body and great resistance, lives exclusively in fast-flowing rivers, generally of the cordilleran zone, though it's possible to see it also in some rivers nearby to the coast.
		It's little addicted to fly and not abundant; it can be found swimming against the river current or resting in some rock.
		For its shape, colors and habits, it's impossible to confuse it with other duck.
	www.avesdechile.cl /002en.htm (342 words)

	CHILE – PARALLELS IN LATITUDE (Site not responding. Last check: 2007-10-08)
		The drive back to the hotel included some lakes packed with ducks, including a remarkable 50+ Rosy-billed Pochards, and we arrived in good time to rest and repack before dinner overlooking a sunset on the Straits.
		We found no Torrent Ducks at lunch (despite much searching), and so headed on to the lodge, with stops in the bamboo for Ochre-flanked Tapaculo and Des Mur’s Wiretail.
		Today’s picnic lunch was followed by a male Torrent Duck, an ice cream break in the shade (!), a fire-crowned Green-backed Firecrown, and more tapaculo “work” rewarded by beautiful Chucao Tapaculos and a point-blank Magellanic Tapaculo.
	www.sunbirdtours.co.uk /brochure_2003/s_america/chile/Chile2002_000.htm (2326 words)

	BirdForum - Bird Quiz
		The Blue Duck and the Torrent Duck are both adapted to fast flowing streams and rivers.
		Torrent Duck - Andes; Blue Duck - New Zealand.
		Well, if you change from perching goose to order Anseriformes you are bound to get lots of answers, for example mandarin, wood duck, the whistling ducks, even things like really fat domestic muscovy do that...
	www.birdforum.net /printthread.php?t=9173 (2232 words)

	Sylvan Heights
		Lubbock has pioneered successful breeding programs for many threatened bird species from around the world, including the White-winged Wood Duck of Sumatra, the African Pygmy Goose, Spain's White-headed Duck, the Hawaiian Goose, Australia's Pink-eared Duck, and Meller's Duck from the Island of Madagascar, to name only a few.
		The mission of the Sylvan Heights Waterfowl Center is focused on the conservation of birds, especially directed toward the world's rare and endangered waterfowl.
		Mike has also assisted with the TAG’s conservation goals in helping to create the "Venezuelan Waterfowl Foundation" whose main focus is the conservation of the Venezuelan Torrent Duck and the Orinoco Goose.
	www.sylvan-heights.org /our_mission.php (653 words)

	Wildlife in South America - from fjord dwelling Dolphins to the Torrent Duck
		The graceful Puma is a regular hunter in Chile and Argentina, they tend to stalk deer and other small mammals, including several species of Fox.
		The Torrent Duck is the most distinctive duck in South America.
		They live in fast flowing mountain streams, and save themselves from being dashed to pieces on rocks by use of their long, stiff tails.
	www.oceanexplorer.net /south-america-maps/south-america-wildlife.htm (512 words)

	Surfbirds Online Photo Gallery Search Results
		Torrent Duck, Colombia, La Suiza May 2004 © Nigel Driver
		Torrent Duck, Argentina, near El Chalten March 2005 © richard rae
		Torrent Duck, Ecuador, Guango 5th June 2005 © Sam Woods
	www.surfbirds.com /cgi-bin/gallery/search2.cgi?species=Torrent+Duck (136 words)

	Torrent Duck in Lauca National Park by Daniel Martinez (via CobWeb/3.1 planetlab2.tamu.edu) (Site not responding. Last check: 2007-10-08)
		Torrent Duck in Lauca National Park by Daniel Martinez (via CobWeb/3.1 planetlab2.tamu.edu)
		Torrent Ducks are breeding residents of the cold mountain streams of the Lauca area and always a treat to watch.
		Johnson relates the account of extraordinarily dedicated photographer George Moffet, who set up camp and devoted six weeks to the study of Torrent Ducks in Argentina.
	www.birdingaltoandino.com.cob-web.org:8888 /torrent%20duck.htm (107 words)

	Morgan Tingley Journal - Tandayapa Valley Ecuador - Young Adult Birders' Conference - Conferences - ABA
		A hundred yards downstream from the dippers we turn a corner and watch in astonishment as an equally-surprised male and female Torrent Duck dash away up a waterfall and further upstream.
		Found throughout the Andean region, Torrent Ducks are terrific and charismatic birds.
		The female disappears permanently as soon as we arrive, but the male quickly reappears at the top of the waterfall and to the delight of the group proceeds to sit out in the open for at least 10 minutes.
	americanbirding.org /mtgs/conferences/archive/2005ecuador/dayone.html (1191 words)

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