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Topic: Argentavis magnificens

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	Argentavis - Wikipedia, the free encyclopedia
		Argentavis magnificens, sometimes called the Giant Teratorn, is an extinct bird known from (2006) 3 sites from the late Miocene (5 - 23 million years before present) of Central and Northwestern Argentina, South America.
		Argentavis seems not aerodynamically well-suitable for predation, it probably rather scavenged for carrion, and it is likely that it usually stole kills from marsupial carnivores such as Thylacosmilus.
		Argentavis probably held territories of over 500 square km, which it screened for food, possibly utilizing a generally north-south direction to avoid being slowed by adverse winds.
	en.wikipedia.org /wiki/Argentavis_magnificens (522 words)

	SIZE AND LOCOMOTION IN TERATORNS (AVES: TERATORNITHIDAE) (Site not responding. Last check: 2007-11-02)
		The aspect ratio of a bird's wing is given by dividing the wingspan by the mean chord (width) of the wing, which is the same as the square of the wingspan divided by the wing area.
		The hindlimb of Argentavis magnificens is known only from the shafts of a tibiotarsus and a tarsometatarsus, both of which repeat the stout, columnar structure found in Teratornis merriami.
		Argentavis rnag- nificens is also the oldest known teratorn, and, with the exception of an indeterminate speci- men from late Pleistocene deposits of south- western Ecuador (Campbell 1976, Campbell and Tonni 1980), it is the only teratorn known from outside North America.
	elibrary.unm.edu /sora/Auk/v100n02/p0390-p0403.html (0 words)

	Rhys, D. H. --- Argentavis Magnificens: World's Largest Flying Bird
		Looming over the entrance hall, a fl silhouette of Argentavis magnificens spans its wings over 8 m and stands 3.5 m from tip of tail to end of beak.
		Argentavis magnificens (new genus and species) has now wrested the title of "World's largest flying bird" from Osteodotornis orri, the gigantic marine bird from the Miocene of California.
		magnificens is thought to have fed. This latter supposition is based on studies of jaw articulation in comparison with recent similar birds.
	www.grisda.org /origins/07087.htm (0 words)

	Teratornithidae - Wikipedia, the free encyclopedia
		Wing loading of Argentavis was relatively low, and if there were any significant wind present, the bird could probably get airborne merely by spreading its wings, just like modern Albatrosses.
		It is noteworthy that South America during Miocene probably featured strong and steady westerly winds, as the Andes were still forming and not yet very high.
		Most likely teratorns swallowed their prey whole: Argentavis could have swallowed up to hare-sized animals.
	en.wikipedia.org /wiki/Teratorns (0 words)

	Argentavis
		Argentavis magnificens is an extinct bird from the late Miocene (23 - 5 million years before present) of South America.
		magnificens was believed to be a land bird, another good point of comparison is the Andean Condor, Vultur gryphus, which some believe is a relative of Argentavis.
		This bird has a wingspan of about 3 m and is among the largest land birds.
	www.gogoglo.com /wiki/en/wikipedia/a/ar/argentavis.html (0 words)

	Meningar.com om magnificens. Magnificent, Fregata, Frigatebird mm.
		Fregata magnificens Magnificent Frigatebird (Fregata magnificens) was sometimes previously known as Man O'War, reflecting its rakish lines, speed, and aerial piracy of other birds...
		Magnificent Frigatebird (Fregata magnificens) Magnificent Frigatebird (Fregata magnificens) Ubatuba, São Paulo, BrazilThe Magnificent Frigatebird is found on the Atlantic coasts of North and South America largely within the tropics...
		The Greater Frigate Bird is a large and strong fl bird with a long, angled bill, a large red crop with fl dots extending from its nib to its throat...
	www.meningar.com /magnificens.html (0 words)

	Guardian Unlimited \| Notes and Queries \| What is the largest flying bird alive today and the largest extinct flightless ...
		The largest bird ever to fly were the Teratorns (a type of Condor), the largest of which, Argentavis magnificens, had a wingspan of 3 metres, and weighed 120kg.
		The heaviest extinct bird, for which there is conclusive evidence was the Elephant Bird (Diornis maximus) of Madagascar, weigiing kg, and up to 3 metres high (slightly shorter than some Neww Zealand Moas).
		By the way, fossil remains have been found of a bird of prey called Argentavis magnificens which had a wingspan of 25 feet and may have weighed up to 170lbs.
	www.guardian.co.uk /notesandqueries/query/0,5753,-24380,00.html (0 words)

	Evidence of the Giant Birds
		Argentine scientists' have unearthed the fossil remains of what Seems to be the world's largest known flying bird, Argentavis magnificens.
		With a wingspan of 25 feet, the bird measured' 11 feet from beak to tail, and weighed in at l60 to 170 lbs.
		They admit that it seems initially unlikely that a bird of that size could even get off the ground, but believe that the size of the wing bones and their markings indicate that Argenravis magnificens did fly.
	sped2work.tripod.com /evidence.html (0 words)

	The Great Thunderbird - single post for printer (Site not responding. Last check: 2007-11-02)
		The bird in that picture is Argentavis Magnificens and has a wingspan of 25 feet as the link states.
		If you saw a similar bird with an 8-10 foot wingspan that would be completely plausible as the largest wingspan of a living bird is about 11 feet.
		Also it is possible that what you saw is a smaller descendent of Argentavis Magnificens.
	www.abovetopsecret.com /forum/single.php?post=1098452 (0 words)

	Displaying comments
		Looming over the entrance hall, a fl silhouette of Argentavis magnificens spans its wings over 8 m (about 25 ft.) and stands 3.5 m from tip of tail to end of beak.
		Argentavis magnificens (new genus and species) has no...
		Argentavis magnificens has a wingspan of 8 meters.
	www.unexplained-mysteries.com /gallery/displaycomments.php?pos=-150 (0 words)

	Guardian \| Scientist gives Rudolph wings (Site not responding. Last check: 2007-11-02)
		Paolo Viscardi, a flight physiologist at the University of Leeds, has calculated that flying reindeer would need wings 10 metres (33ft) long.
		That's three times the wingspan of the wandering albatross and more impressive even than the bird with the largest known wingspan, the extinct South American Argentavis magnificens.
		The calculations don't include the weight of the sleigh, presents and the great man himself, though Mr Viscardi said that was not a problem.
	www.guardian.co.uk /print/0,,4821074-103690,00.html (0 words)

	Giant Teratorn Scientific classification Scientific classification ...
		"Giant Teratorn" "Scientific classification Scientific classification" Kingdom Kingdom:Animal Animalia Phylum Phylum:Chordata Chordata Class Class:Aves Aves Order Order:Ciconiiformes Ciconiiformes Family Family:Theratornithidae Theratornithidae "Genus Genus": "Argentavis" "Species Species" "Argentavis magnificens" "Argentavis magnificens" is an extinct extinct bird bird from the late Miocene Miocene (about 6 million years before present) of South America South America.
		Since "A. magnificens" was believed to be a land bird, another good point of comparison is the Andean Condor Andean Condor, "Vultur gryphus", which some believe is a relative of "Argentavis".
		From the size and structure of its wings it is inferred that "A. magnificens" flew mainly by soaring, using flapping flight only during short periods.
	www.biodatabase.de /Argentavis (0 words)

	University of Leeds \| For the media \| Press releases \| Can reindeer fly?
		That’s wider than a London bus is long, and would make the current holder of the world’s widest wings, the Wandering Albatross (up to 3.6 metres), feel like the tooth fairy.
		The bird with the largest ever wingspan was the South American Argentavis magnificens, which would have fallen short of Santa’s crew by two clear metres.
		But perhaps Christmas would come earlier if Santa employed the sadly extinct Texas pterosaur Quetzalcoatlus, which, with wings up to 15 metres wide, is thought to be the largest creature ever to have flown.
	www.leeds.ac.uk /media/current/reindeer.htm (0 words)

	Thunderbird
		Cryptozoologists who take these cases seriously typically consider a Teratorn bird as a candidate.
		Some connect it to the fossil Teratorn species Argentavis magnificens, and others to Teratornis incrediblis.
		Some individuals or groups intent typically propose Pterosaurs as a candidate, even though they don't even vaguely resemble the sightings.
	www.geocities.com /capedrevenger/thunderbird.html (0 words)

	What bird has the largest wingspan?
		In fact, the wandering albatross has sometimes been known to sleep while it flies.
		Even the wandering albatross, however, can't compete with the extinct South American teratoron (Argentavis magnificens).
		The teratoron, which existed 6 to 8 million years ago, had an estimated wingspan of 25 feet!
	www.usefultrivia.com /science_trivia/bird_trivia_001a.html (0 words)

	Largest flying bird at MetaFoxx
		Also confirms written description of appearance, distribution, and habitat.
		Argentavis magnificens (new genus and species) has now wrested the title of "World's
		bird goes to Argentavis magnificens which stood an impressive 1.5 metres tall and possessed a wing which measured some 1.2...
	metafoxx.com /largest+flying+bird (0 words)

	Re: Maximum size/weight for flight in birds? (Site not responding. Last check: 2007-11-02)
		I think these limits are reached before material strength becomes an issue.
		The largest-known flying bird: the extinct, condor-like Teratorn (Argentavis magnificens) of Argentina, with a wingspan of at least 6 meters, estimated weight 120 kg.
		Could probably have carried off a small deer, but not a zebra.
	www.talkaboutpets.com /group/rec.birds/messages/165786.html (0 words)

	GIANT BIRDS: How Big, Could They Fly?
		Found in the flood plain of the Willamette Valley
		Giant birds of prey, the Argentinian Teratorn (argentavis magnificens), as large as a man weighing 170 - 200 lbs but with wingspans of over twenty-five feet and individual wing feather lengths as long as five feet, flew within recorded history.
		A twenty-five foot plus wing size would limit such a bird to more open areas such as the South American pampas or the North American great plains (Thunderbirds), as maneuverability around trees and shrubs would seem difficult.
	www.angelfire.com /electronic/bodhidharma/giantbirds2.html (0 words)

	Flying birds (Site not responding. Last check: 2007-11-02)
		The title of largest-ever flying bird goes to Argentavis magnificens which stood an impressive 1 flying birds.5 metres tall and possessed a wing which measured some 1.2.
		Front view of Flying Bird - Sculpture by Dedani Masaya.
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	www.realunits.com /flying+birds.html (0 words)

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