Great auk

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Great auk
A large, stuffed bird with a black back, white belly, heavy bill, and white eye patch stands, amongst display cases and an orange wall.
Specimen no. 8 and replica egg in Kelvingrove, Glasgow
Conservation status

Extinct  (1852) (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Family: Alcidae
Genus: Pinguinus
Bonnaterre, 1791
Species: P. impennis
Binomial name
Pinguinus impennis
(Linnaeus, 1758)
A map showing the range of the great auk, with the coasts of North America and Europe forming two boundaries, a line stretching from New England to northern Portugal the southern boundary, and the northern boundary wrapping around the southern shore of Greenland.
Approximate range (in blue) with known breeding sites indicated by yellow marks[2][3]
Synonyms

The great auk (Pinguinus impennis) was a flightless bird of the alcid family that became extinct in the mid-19th century. It was the only modern species in the genus Pinguinus, a group of birds that formerly included one other species of flightless giant auk from the Atlantic Ocean region. It bred on rocky, isolated islands with easy access to the ocean and a plentiful food supply, a rarity in nature that provided only a few breeding sites for the auks. When not breeding, the auks spent their time foraging in the waters of the North Atlantic, ranging as far south as northern Spain and also around the coast of Canada, Greenland, Iceland, the Faroe Islands, Norway, Ireland, and Great Britain.

The great auk was 75 to 85 centimetres (30 to 33 in) tall and weighed around 5 kilograms (11 lb), making it the largest member of the alcid family. It had a black back and a white belly. The black beak was heavy and hooked, with grooves on its surface. During summer, the great auk's plumage showed a white patch over each eye. During winter, the auk lost these patches, instead developing a white band stretching between the eyes. The wings were only 15 centimetres (5.9 in) long, rendering the bird flightless. Instead, the auk was a powerful swimmer, a trait that it used in hunting. Its favorite prey were fish, including Atlantic menhaden and capelin, and crustaceans. Although agile in the water, it was clumsy on land. Great auk pairs mated for life. They nested in extremely dense and social colonies, laying one egg on bare rock. The egg was white with variable brown marbling. Both parents incubated the egg for about six weeks before the young hatched. The young auk left the nest site after two or three weeks although the parents continued to care for it.

The great auk was an important part of many Native American cultures, both as a food source and as a symbolic item. Many Maritime Archaic people were buried with great auk bones, and one was buried covered in over 200 auk beaks, which are assumed to have been part of a cloak made of their skins. Early European explorers to the Americas used the auk as a convenient food source or as fishing bait, reducing its numbers. The bird's down was in high demand in Europe, a factor which largely eliminated the European populations by the mid-16th century. Scientists soon began to realize that the great auk was disappearing and it became the beneficiary of many early environmental laws, but this proved not to be enough. Its growing rarity increased interest from European museums and private collectors in obtaining skins and eggs of the bird. On 3 July 1844, the last two confirmed specimens were killed on Eldey, off the coast of Iceland, which also eliminated the last known breeding attempt. There are unconfirmed later reports of roaming individuals being seen or caught. A record of a bird in 1852 is considered by some to be the last sighting of the species. The great auk is mentioned in a number of novels and the scientific journal of the American Ornithologists' Union is named The Auk in honour of this bird.

Taxonomy and evolution[edit]

A summer great auk is stuffed and placed upon a wooden block, looking right.
Stuffed great auk no. 44, Leipzig

Analysis of mtDNA sequences has confirmed morphological and biogeographical studies suggesting that the razorbill is the great auk's closest living relative.[4] The great auk was also closely related to the little auk (dovekie), which underwent a radically different evolution compared to Pinguinus. Due to its outward similarity to the razorbill (apart from flightlessness and size), the great auk was often placed in the genus Alca, following Linnaeus.

The fossil record (especially the sister species Pinguinus alfrednewtoni) and molecular evidence show that the three genera, while closely related, diverged soon after their common ancestor, a bird probably similar to a stout Xantus's murrelet, had spread to the coasts of the Atlantic. By that time the murres, or Atlantic guillemots, had apparently already split from the other Atlantic alcids. Razorbill-like birds were common in the Atlantic during the Pliocene, but the evolution of the Little Auk is sparsely documented.[4] The molecular data are compatible with either view, but the weight of evidence suggests placing the great auk in a distinct genus.[4] Some ornithologists still feel it is more appropriate to retain the species in the genus Alca, however.[5] The great auk was not closely related to the other extinct genera of flightless alcids, Mancalla, Praemancalla, and Alcodes.[6]

Pinguinus alfrednewtoni was a larger and also flightless member of the genus Pinguinus that lived during the Early Pliocene.[7] Known from bones found in the Yorktown Formation of the Lee Creek Mine in North Carolina, it is believed to have split along with the great auk from a common ancestor. Pinguinus alfrednewtoni lived in the western Atlantic while the great auk lived in the eastern Atlantic, but after the former died out after the Pliocene, the great auk replaced it.[7]

Etymology[edit]

The great auk was one of the 4400 animal species originally described by Carolus Linnaeus in his 18th-century work, Systema Naturae, in which it was named Alca impennis.[8] The name Alca is a Latin derivative of the Scandinavian word for razorbills and their relatives.[9] The species was not placed in its own genus, Pinguinus, until 1791.[10] The generic name is derived from the Spanish and Portuguese name for the species, and the specific name impennis is from Latin and refers to the lack of flight feathers or pennae.[9]

Only known illustration of a great auk drawn from life, Ole Worm's pet received from the Faroe Islands

The Irish name for the great auk is 'falcóg mhór', meaning 'big seabird/auk'. The Basque name is arponaz, meaning "spearbill". Its early French name was apponatz. The Norse called the great auk geirfugl, which means "spearbird". This has led to an alternative English common name for the bird, "garefowl" or "gairfowl".[11] The Inuit name for the great auk was isarukitsok, which meant "little wing".[12] The word "penguin" first appears in the 16th century as a synonym for "great auk."[13] It may be derived from the Welsh pen gwyn "white head", although the etymology is debated. When European explorers discovered what are today known as penguins in the Southern Hemisphere, they noticed their similar appearance to the great auk and named them after this bird, although they are not closely related.[14]

Description[edit]

A large bird with a black back, white belly, and white eye patch stands on a rock by the ocean, while a similar bird with a white stripe instead of an eyepatch swims.
Summer (standing) and winter (swimming) plumage. By John Gerrard Keulemans.

Standing about 75 to 85 centimetres (30 to 33 in) tall and weighing around 5 kilograms (11 lb) as adult birds,[15] the flightless Great Auk was the largest of both its family and the order Charadriiformes. The auks that lived further north averaged larger in size than the more southerly members of the species.[6] Males and females were similar in plumage, although there is evidence for differences in size, particularly in the bill and femur length.[16][17][18] The back was primarily a glossy black, while the stomach was white. The neck and legs were short, and the head and wings small.[19] The auk appeared chubby due to a thick layer of fat necessary for warmth.[20] During summer, the great auk developed a wide white eye patch over the eye, which had a hazel or chestnut iris.[21][22] During winter the auk molted and lost this eye patch, which was replaced with a wide white band and a gray line of feathers which stretched from the eye to the ear.[16] During the summer, the auk's chin and throat were blackish-brown, while the inside of the mouth was yellow.[17] During the winter, the throat became white.[16] Some individuals had grey plumage on their flanks, but the purpose of this is unknown.[23] The bill was large at 11 centimetres (4.3 in) long and curved downwards at the top;[20] the bill also had deep white grooves in both the upper and lower mandibles, up to seven on the upper mandible and twelve on the lower mandible in summer, though there were fewer in winter.[24][25] The wings were only 15 centimetres (5.9 in) in length and the longest wing feathers were only 10 centimetres (3.9 in) long.[20] Its feet and short claws were black while the webbed skin between the toes was brownish black.[25] The legs were far back on the bird's body, which gave it powerful swimming and diving abilities.[26]

Hatchlings were gray and downy, but their exact appearance is unknown, since no skins exist today.[25] Juvenile birds had less prominent grooves in their beaks and had mottled white and black necks,[27] while the eye spot found in adults was not present; instead, a gray line ran through the eyes (which still had the white eye ring) to just below the ears.[17]

The auk's calls included low croaking and a hoarse scream. A captive auk was observed making a gurgling noise when anxious. It is not known what its other vocalizations were like, but it is believed that they were similar to those of the razorbill, only louder and deeper.[28]

Distribution and habitat[edit]

A large, triangular rock rises from the misty waters, with more islands behind and northern gannets flying around it.
Stac an Armin, St. Kilda, Scotland, one locality where the great auk used to breed

The great auk was found in the cold North Atlantic coastal waters along the coasts of Canada, the northeastern United States, Norway, Greenland, Iceland, the Faroe Islands, Ireland, Great Britain, France, and northern Spain.[29] The great auk left the North Atlantic waters for land only to breed, even roosting at sea when not breeding.[24][30] The rookeries of the great auk were found from Baffin Bay down to the Gulf of St. Lawrence, across the far northern Atlantic, including Iceland, and in Norway and the British Isles in Europe.[24][31][32] For their nesting colonies the great auks required rocky islands with sloping shorelines that provided access to the seashore.[26] These were very limiting requirements and it is believed that the great auk never had more than 20 breeding colonies.[26] Additionally, the nesting sites needed to be close to rich feeding areas and be far enough from the mainland to discourage visitation by humans and polar bears.[33] The localities of only six former breeding colonies are known: Papa Westray in the Orkney Islands, St. Kilda Island off Scotland, Grimsey Island and Eldey Island near Iceland, Funk Island[34] near Newfoundland, and the Bird Rocks (Rochers-aux-Oiseaux) in the Gulf of St. Lawrence.[26] Records suggest that this species may have bred on Cape Cod, Massachusetts.[26] By the late 18th and early 19th centuries, the breeding range of the Great Auk was restricted to Funk Island, Grimsey Island, Eldey Island, the Gulf of St. Lawrence, and St. Kilda Island.[31] Funk Island was the largest known breeding colony.[35]

The great auk migrated north and south away from the breeding colonies after the chicks fledged and tended to go southward during late fall and winter.[36] It was common in the Grand Banks.[33] Its bones have been found as far south as Florida, where it may have occurred during four isolated time periods: around 1000 BC, 1000 AD, the 15th century, and the 17th century.[37][38] (It has been suggested, however, that some of the bones discovered in Florida may be the result of aboriginal trading.)[36] The great auk typically did not go further south than Massachusetts Bay in the winter.[36]

Ecology and behavior[edit]

The great auk was never observed and described by modern scientists during its existence, and is only known from the accounts of laymen, such as sailors, so its behaviour is therefore not well known and hard to reconstruct. However, much can also be inferred from its close, living relative, the razorbill, as well as from remaining soft tissue.[5]

Great auks walked slowly and sometimes used their wings to help them traverse rough terrain.[27] When they did run, it was awkwardly and with short steps in a straight line.[30] They had few natural predators, mainly large marine mammals, such as the orca, and white-tailed eagles.[30] Polar bears preyed on nesting colonies of the auk.[39] This species had no innate fear of human beings, and their flightlessness and awkwardness on land compounded their vulnerability. They were hunted for food, feathers, and as specimens for museums and private collections.[1] Great auks reacted to noises, but were rarely scared by the sight of something.[40] The auks used their bills aggressively both in the dense nesting sites and when threatened or captured by humans.[30] These birds are believed to have had a life span of about 20 to 25 years.[41] During the winter, the great auk migrated south either in pairs or in small groups, and never with the entire nesting colony.[42]

The great auk was generally an excellent swimmer, using its wings to propel itself underwater.[27] While swimming, the head was held up but the neck was drawn in.[30] This species was capable of banking, veering, and turning underwater.[42] The great auk was known to dive to depths of 76 metres (249 ft) and it has been claimed that the species was able to dive to depths of 1 kilometre (3,300 ft).[43] It could also hold its breath for 15 minutes, longer than a seal.[42] The great auk was capable of accelerating under water, then shooting out of the water to land on a rocky ledge above the ocean's surface.[42]

Diet[edit]

A summer great auk tilts its head back, swallowing a fish.
Great auk eating a fish, by John Gould

This alcid typically fed in shoaling waters which were shallower than those frequented by other alcids,[44] although after the breeding season they had been sighted up to 500 kilometres (310 mi) from land.[44] They are believed to have fed cooperatively in flocks.[44] Their main food was fish, usually 12 to 20 centimetres (4.7 to 7.9 in) in length and weighing 40 to 50 grams (1.4 to 1.8 oz), but occasionally their prey was up to half the bird's own length. The bird could on average dive up to 75 metres (246 ft) for its prey with the maximum dive depth being estimated at 130 metres (430 ft); however, to conserve energy, most dives were shallower.[44] Its ability to dive this deeply reduced competition with other alcid species. Based on remains associated with great auk bones found on Funk Island and on ecological and morphological considerations, it seems that Atlantic menhaden and capelin were their favored prey.[45] Other fish suggested as potential prey include lumpsuckers, shorthorn sculpins, cod, crustaceans, and sand lance.[43][44] The young of the great auk are believed to have eaten plankton and, possibly, fish and crustaceans regurgitated by adult auks.[35][41]

Reproduction[edit]

Nesting ground with juveniles and eggs, by Keulemans

Great auks began pairing in early and mid May.[46] They are believed to have mated for life, although some theorize that auks could have mated outside of their pair, a trait seen in the Razorbill.[30][41] Once paired, they nested at the base of cliffs in colonies, where they likely copulated.[20][30] Mated pairs had a social display in which they bobbed their heads, showing off their white eye patch, bill markings, and yellow mouth.[30] These colonies were extremely crowded and dense, with some estimates stating that there was a nesting auk for every 1 square metre (11 sq ft) of land.[30] These colonies were very social.[30] When the colonies included other species of alcid, the great auks were dominant due to their size.[30]

A large, elongate egg is sketched, primarily white with brown streaks condensing closer to the larger end.
Paintings showing variation in egg markings, as well as seasonal and ontogenic differences in plumage, based on museum specimens

Female great auks would lay only one egg each year, between late May and early June, although they could lay a replacement egg if the first one was lost.[42][46] In years when there was a shortage of food, the auk did not breed.[47] A single egg was laid on bare ground up to 100 metres (330 ft) from shore.[27][48] The egg was ovate and elongate in shape, and averaged 12.4 centimetres (4.9 in) in length and 7.6 centimetres (3.0 in) across at the widest point.[10][39] The egg was yellowish white to light ochre with a varying pattern of black, brown or greyish spots and lines which often congregated on the large end.[27][49] It is believed that the variation in the egg's streaks enabled the parents to recognize their egg in the colony.[46] The pair took turns incubating the egg in an upright position for the 39 to 44 days before the egg hatched, typically in June, although eggs could be present at the colonies as late as August.[39][46]

The parents also took turns feeding their chick. According to one account, the chick was covered with grey down.[41] The young bird took only two or three weeks to mature enough to abandon the nest and land for the water, typically around the middle of July.[39][46] The parents cared for their young after they fledged, and adults would be seen swimming with their young perched on their backs.[46] Great auks sexually matured when they were four to seven years old.[47]

Relationship with humans[edit]

A sketch of four bones of the great auk, all long. The first two on the left are shorter and hook and fatten at the end, while the third is straight. The fourth has a nub on both ends.
Two Humeri(1) and two Tibiae(2), bones of the great auk uncovered by archaeologists in an ancient kitchen midden in Caithness.

The great auk was a food source for Neanderthals more than 100,000 years ago, as evidenced by well-cleaned bones found by their campfires.[29] Images believed to depict the great auk were also carved into the walls of the El Pendo Cave, Santander in Spain over 35,000 years ago,[50] while cave paintings 20,000 years old have been found in France's Grotte Cosquer.[12]

Native Americans valued the great auk as a food source during the winter and as an important symbol. Images of the great auk have been found in bone necklaces.[51] A person buried at the Maritime Archaic site at Port au Choix, Newfoundland, dating to about 2000 BC, was found surrounded by more than 200 great auk beaks, which are believed to have been part of a suit made from their skins, with the heads left attached as decoration.[52] Nearly half of the bird bones found in graves at this site were of the great auk, suggesting that it had cultural significance for the Maritime Archaic people.[53] The extinct Beothuks of Newfoundland made pudding out of the auk's eggs.[41] The Dorset Eskimos also hunted the species, while the Saqqaq in Greenland overhunted the species, causing a local reduction in range.[53]

Later, European sailors used the auks as a navigational beacon, as the presence of these birds signaled that the Grand Banks of Newfoundland were near.[12]

This species is estimated to have had a maximum population in the millions.[41] The great auk was hunted on a significant scale for food, eggs, and its down feathers from at least the 8th century. Prior to that, hunting by local natives can be documented from Late Stone Age Scandinavia and eastern North America,[54] as well as from early 5th century Labrador, where the bird seems to have occurred only as a straggler.[55] Early explorers, including Jacques Cartier and numerous ships attempting to find gold on Baffin Island, were not provisioned with food for the journey home, and therefore used this species as both a convenient food source and bait for fishing.[56] Some of the later vessels anchored next to a colony and ran out planks to the land. The sailors then herded hundreds of these auks onto the ships, where they were then slaughtered.[57] Some authors have questioned whether this hunting method actually occurred successfully.[53] Great auk eggs were also a valued food source, as the eggs were three times the size of a murre's and had a large yolk.[53] These sailors also introduced rats onto the islands.[49]

Extinction[edit]

Specimen no. 3 in Brussels, which could be one of the two last birds killed on Eldey in 1844

The Little Ice Age may have reduced the population of the great auk by exposing more of their breeding islands to predation by polar bears, but massive exploitation for their down drastically reduced the population.[47] By the mid-16th century, the nesting colonies along the European side of the Atlantic were nearly all eliminated by humans killing this bird for its down, which was used to make pillows.[58] In 1553, the auk received its first official protection, and in 1794 Great Britain banned the killing of this species for its feathers.[59] In St. John's, individuals violating a 1775 law banning hunting the great auk for its feathers or eggs were publicly flogged, though hunting for use as fishing bait was still permitted.[53] On the North American side, eider down was initially preferred, but once the eiders were nearly driven to extinction in the 1770s, down collectors switched to the auk at the same time that hunting for food, fishing bait, and oil decreased.[53][60] The great auk had disappeared from Funk Island by 1800, and an account by Aaron Thomas of HMS Boston from 1794 described how the bird had been systematically slaughtered until then:

If you come for their Feathers you do not give yourself the trouble of killing them, but lay hold of one and pluck the best of the Feathers. You then turn the poor Penguin adrift, with his skin half naked and torn off, to perish at his leasure. This is not a very humane method but it is the common practize. While you abide on this island you are in the constant practize of horrid cruelties for you not only skin them Alive, but you burn them Alive also to cook their Bodies with. You take a kettle with you into which you put a Penguin or two, you kindle a fire under it, and this fire is absolutely made of the unfortunate Penguins themselves. Their bodys being oily soon produce a Flame; there is no wood on the island.[5]

With its increasing rarity, specimens of the great auk and its eggs became collectible and highly prized by rich Europeans, and the loss of a large number of its eggs to collection contributed to the demise of the species. Eggers, individuals who visited the nesting sites of the great auk to collect their eggs, quickly realized that the birds did not all lay their eggs on the same day, so they could make return visits to the same breeding colony. Eggers only collected eggs without embryos growing inside of them and typically discarded the eggs with embryos.[39]

It was on the islet of Stac an Armin, St Kilda, Scotland, in July 1844, that the last great auk seen in the British Isles was caught and killed.[61] Three men from St Kilda caught a single "garefowl", noticing its little wings and the large white spot on its head. They tied it up and kept it alive for three days, until a large storm arose. Believing that the auk was a witch and the cause of the storm, they then killed it by beating it with a stick.[62][63] It is the only British bird made extinct in historic times.[64]

Photograph of Eldey, last refuge of the great auk

The last colony of great auks lived on Geirfuglasker (the "Great Auk Rock") off Iceland. This islet was a volcanic rock surrounded by cliffs which made it inaccessible to humans, but in 1830 the islet submerged after a volcanic eruption, and the birds moved to the nearby island of Eldey, which was accessible from a single side. When the colony was initially discovered in 1835, nearly fifty birds were present. Museums, desiring the skins of the auk for preservation and display, quickly began collecting birds from the colony.[65] The last pair, found incubating an egg, was killed there on 3 July 1844, on request from a merchant who wanted specimens, with Jón Brandsson and Sigurður Ísleifsson strangling the adults and Ketill Ketilsson smashing the egg with his boot.[66] Great auk specialist John Wolley interviewed the two men who killed the last birds,[67] and Ísleifsson described the act as follows:

The rocks were covered with blackbirds [referring to Guillemots] and there were the Geirfugles ... They walked slowly. Jón Brandsson crept up with his arms open. The bird that Jón got went into a corner but [mine] was going to the edge of the cliff. [I] caught it close to the edge – a precipice many fathoms deep. The black birds were flying off. I took him by the neck and he flapped his wings. He made no cry. I strangled him.[5]

A later claim of a live individual sighted in 1852 on the Grand Banks of Newfoundland has been accepted by the International Union for Conservation of Nature and Natural Resources (IUCN).[1]

Preserved specimens[edit]

Stuffed specimen no. 39, skeleton and replica egg at Senckenberg Museum

Today, 78 skins of the great auk remain mostly in museum collections, along with around 75 eggs and 24 complete skeletons. All but four of the surviving skins are in summer plumage, and only two of these are immature. No hatchling specimens exist. Each egg and skin has been assigned a number by specialists.[5] While thousands of isolated bones have been collected from 19th century Funk Island to Neolithic middens, only a small number of complete skeletons exist.[68] Natural mummies are also known from Funk Island, and the eyes and internal organs of the last two birds from 1844 are stored in the Zoological Museum, Copenhagen. It is uncertain where their skins are located today, however, but according to Errol Fuller, three are suspected due to their connection to a specific dealer in Copenhagen; the specimens in Los Angeles County Museum of Natural History, in the Royal Belgian Institute of Natural Sciences, and the one in Übersee-Museum Bremen.[5]

Following the bird's extinction, remains of the great auk increased dramatically in value, and auctions of specimens created intense interest in Victorian Britain, where 15 specimens are now located, the largest number of any country.[5] A specimen was bought in 1971 by the Icelandic Museum of National History for the sum of £9000, which placed it in the Guinness Book of Records as the most expensive stuffed bird ever sold.[69] The price of its eggs sometimes reached up to 11 times the amount earned by a skilled worker in a year.[70] The present whereabouts of six of the eggs are unknown, and several other eggs have been accidentally destroyed. Two mounted skins were destroyed in the 20th century, one in the Mainz Museum during the Second World War, and one in the Museu Bocage, Lisbon, was destroyed by a fire in 1978.[5]

Cultural depictions[edit]

The great auk is one of the more frequently referenced extinct birds in literature. It appears in many works of children's literature.

Statue of a great auk.

The great auk is also present in a wide variety of other works of fiction.

  • In his short story The Harbor Master, by Robert W. Chambers, the discovery and attempted recovery of the last known pair of great auks is central to the plot (which also involves a proto-Lovecraftian element of suspense). From the collection In Search of the Unknown, Harper and Brothers Publishers, New York, 1904.

See also[edit]

References[edit]

  1. ^ a b c BirdLife International (2012). "Pinguinus impennis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Grieve, Symington (1885). The Great Auk, or Garefowl: Its history, archaeology, and remains. Thomas C. Jack, London. 
  3. ^ Parkin, Thomas (1894). The Great Auk, or Garefowl. J.E. Budd, Printer. Retrieved 2010-05-14. 
  4. ^ a b c Moum, Truls; Arnason, Ulfur & Árnason, Einar (2002). "Mitochondrial DNA sequence evolution and phylogeny of the Atlantic Alcidae, including the extinct Great Auk (Pinguinus impennis)". Molecular Biology and Evolution (Oxford: Oxford University Press) 19 (9): 1434–1439. doi:10.1093/oxfordjournals.molbev.a004206. PMID 12200471. Retrieved 2009-05-08. 
  5. ^ a b c d e f g h i Fuller, Errol (1999). The Great Auk (illustrated ed.). Southborough, Kent, UK: Privately Published. p. 401. ISBN 0-9533553-0-6. 
  6. ^ a b Montevecchi, William A.; David A. Kirk (1996). "Systematics-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-29. 
  7. ^ a b Olson, Storrs L.; Pamela C. Rasmussen (2001). "Miocene and Pliocene Birds from the Lee Creek Mine, North Carolina". In Ray, Clayton E. Smithsonian Contributions to Paleobiology 90. Washington DC: Smithsonian Institution Press. p. 279. 
  8. ^ Linnaeus, C (1758). Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. (in Latin). Holmiae: Laurentii Salvii. p. 130. 
  9. ^ a b Johnsgard, Paul A. (1987). Diving Birds of North America. Lincoln: University of Nebraska Press. pp. 265–266. ISBN 0-8032-2566-0. Retrieved 11 May 2010. 
  10. ^ a b Gaskell, Jeremy (2000). Who Killed the Great Auk?. Oxford University Press (USA). p. 152. ISBN 0-19-856478-3. 
  11. ^ Cokinos 2000, p. 333
  12. ^ a b c Cokinos 2000, p. 314
  13. ^ "PINGOUIN : Etymologie de PINGOUIN". Centre National de Ressources Textuelles et Lexicales. Retrieved 2010-01-25. 
  14. ^ Crofford 1989, p. 10
  15. ^ Livezey, Bradley C. (1988). "Morphometrics of flightlessness in the Alcidae". The Auk (Berkeley, CA: University of California Press) 105 (4): 681–698. Retrieved 2009-05-08. 
  16. ^ a b c Crofford 1989, p. 8
  17. ^ a b c Montevecchi, William A.; David A. Kirk (1996). "Characteristics-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-29.  (subscription required)
  18. ^ Montevecchi, William A.; David A. Kirk (1996). "Measurements-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-29. 
  19. ^ Crofford 1989, p. 15
  20. ^ a b c d Crofford 1989, p. 28
  21. ^ Crofford 1989, p. 9
  22. ^ Cokinos 2000, p. 310
  23. ^ Rothschild, Walter (1907). Extinct Birds. London: Hutchinson & Co. 
  24. ^ a b c Crofford 1989, p. 29
  25. ^ a b c Montevecchi, William A.; David A. Kirk (1996). "Appearance-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-29.  (subscription required)
  26. ^ a b c d e Cokinos 2000, p. 312
  27. ^ a b c d e Morris, Reverend Francis O. (1864). A History of British Birds 6. Groombridge and Sons, Paternoster Way, London. pp. 56–58. 
  28. ^ Montevecchi, William A.; David A. Kirk (1996). "Sounds-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-28. 
  29. ^ a b Crofford 1989, p. 5
  30. ^ a b c d e f g h i j k Montevecchi, William A.; David A. Kirk (1996). "Behavior-Great Auk (Pinguinus impennis)". The Birds of North America Online. Cornell Lab of Ornithology. Retrieved 2010-04-28.  (subscription required)
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Cited texts[edit]

  • Cokinos, Christopher (2000). Hope is the Thing with Feathers: A Personal Chronicle of Vanished Birds. New York: Warner Books. ISBN 0-446-67749-3. 
  • Crofford, Emily (1989). Gone Forever: The Great Auk. New York: Crestwood House. ISBN 0-89686-459-6. 
  • Fuller, Errol (1999). The Great Auk. Southborough, Kent, UK: Privately Published. ISBN 0-9533553-0-6. 

External links[edit]

"Wikisource link to The Home of the Great Auk" Popular Science Monthly Volume 33 Wikisource August 1888 ISSN 0161-7370