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DISPONIBILI
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TRADITIONS
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NATURE
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ARTICLES IN THE BOOK

  1. Alligator
  2. Alpaca
  3. Anaconda
  4. Ant
  5. Anteater
  6. Antelope
  7. Baboon
  8. Badger
  9. Bat
  10. Bear
  11. Bee
  12. Boa
  13. Butterfly
  14. Camel
  15. Canary
  16. Cat
  17. Cheeta
  18. Chicken
  19. Chimpanzee
  20. Cobra
  21. Cod
  22. Condor
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  24. Cow
  25. Crab
  26. Cricket
  27. Crocodile
  28. Crow
  29. Deer
  30. Dog
  31. Dolphin
  32. Donkey
  33. Dove
  34. Duck
  35. Eagle
  36. Elephant
  37. Emu
  38. Falcon
  39. Ferret
  40. Fly
  41. Fox
  42. Gazelle
  43. Giraffe
  44. Goat
  45. Goose
  46. Gorilla
  47. Hare
  48. Hedgehog
  49. Heron
  50. Hippopotamus
  51. Horse
  52. Hyena
  53. Ibis
  54. Jackal
  55. Kangaroo
  56. Kingfisher
  57. Koala
  58. Leopard
  59. Lion
  60. Llama
  61. Lobster
  62. Louse
  63. Mantodea
  64. Mink
  65. Mole
  66. Mongoose
  67. Mosquito
  68. Mule
  69. Nightingale
  70. Octopus
  71. Opossum
  72. Orangutan
  73. Ostrich
  74. Otter
  75. Owl
  76. Panda
  77. Parrot
  78. Partridge
  79. Peacock (Peafowl)
  80. Pelican
  81. Penguin
  82. Pheasant
  83. Pig
  84. Pigeon
  85. Prawn
  86. Puffin
  87. Quail
  88. Rabbit
  89. Reindeer
  90. Rhinoceros
  91. Salmon
  92. Seagull
  93. Seal
  94. Shark
  95. Sheep
  96. Shrimp
  97. Silk worm
  98. Skunk
  99. Sparrow
  100. Spider
  101. Squid
  102. Squirrel
  103. Stork
  104. Swallow
  105. Swan
  106. Tarantula
  107. Termite
  108. Tiger
  109. Toucan
  110. Tuna
  111. Turkey
  112. Turtle
  113. Violet-ear
  114. Vulture
  115. Walrus
  116. Wasp
  117. Whale
  118. Wolf
  119. Woodpecker
  120. Yak
  121. Zebra

 

 
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ANIMALS
This article is from:
http://en.wikipedia.org/wiki/Ducks

All text is available under the terms of the GNU Free Documentation License: http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License 

Duck

From Wikipedia, the free encyclopedia

(Redirected from Ducks)
For other meanings, see Duck (disambiguation).

Duck is the common name for a number of species in the Anatidae family of birds. The ducks are divided between several subfamilies listed in full in the Anatidae article. Ducks are mostly aquatic birds, mostly smaller than their relatives the swans and geese, and may be found in both fresh water and sea water.

Most ducks have a wide flat beak adapted for dredging. They exploit a variety of food sources such as grasses, grains and aquatic plants, fish, and insects. Diving ducks forage deep underwater; Dabbling ducks feed on the surface of water or land. Dabbling ducks have special plates called lamellae[1] that are similar to a whale's baleen. These tiny rows of plates along the inside of the bill allow them to filter water out of the side of their bills and keep food inside. To be able to submerge more easily, the diving ducks are heavier than dabbling ducks, and therefore have more difficulty taking off to fly. A few specialized species (the goosander and the mergansers) are adapted to catch large fish.

In Ohio, one of a duck's biggest enemies is the muskie, which has been known to eat fully grown ducks. In Britain, big pike have been known to swallow fully grown wild ducks whole, and pike often take small ducklings.

The males (drakes) of northern species often have extravagant plumage, but this is moulted in summer to give a more female-like appearance, the "eclipse" plumage. Many species of ducks are temporarily flightless while moulting; they seek out protected habitat with good food supplies during this period. This moult typically precedes migration.

Some duck species, mainly those breeding in the temperate and arctic Northern Hemisphere, are migratory, but others are not. Some, particularly in Australia where rainfall is patchy and erratic, are nomadic, seeking out the temporary lakes and pools that form after localised heavy rain.

Some people use "duck" specifically for adult females and "drake" for adult males, for the species described here; others use "hen" and "drake", respectively.

Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules, and coots.

Etymology

The word duck from (Anglo-Saxon dūce) meaning the bird, came from the verb "to duck" (from Anglo-Saxon supposed *dūcan) meaning "to bend down low as if to get under something", because of the way many species in the dabbling duck group feed by upending (compare the Dutch word duiken = "to dive").

This happened because the older Old English word for "duck" came to be pronounced the same as the word for "end": other Germanic languages still have similar words for "duck" and "end": for example, Dutch eend = "duck", eind = "end"; compare Latin anas (stem anat-) = "duck", Sanskrit anta (masc.) = "end", Lithuanian antis = "duck".

Ducks and humans

In many areas, wild ducks of various species (including ducks farmed and released into the wild) are hunted for food or sport, by shooting, or formerly by decoys. From this came the expression "a sitting duck", which means "an easy target".

Ducks have many economic uses, being farmed for their meat, eggs, feathers and down feathers. They are also kept and bred by aviculturists and often displayed in zoos. All domestic ducks are descended from the wild Mallard Anas platyrhynchos, except Muscovy Ducks[2]. Many breeds have become much larger than their wild ancestor, with a "hull length" (from base of neck to base of tail) of 30 cm (12 inches) or more and routinely able to swallow an adult British Common Frog, Rana temporaria, whole.

Foie gras is often made using the liver of ducks, rather than of geese.

In a wildlife pond, the bottom over most of the area should be too deep for dabbling wild ducks to reach the bottom, to protect bottom-living life from being constantly disturbed and eaten by wild ducks dredging, and domestic ducks should not be allowed in.

Generally, the sound made by ducks is called a "quack". A common false urban legend asserts that quacks do not echo.[3]

Ducks and humor

In 2002, psychologist Richard Wiseman and colleagues at the University of Hertfordshire (UK) finished a year-long LaughLab experiment, concluding that, of the animals in the world, the duck is the type that attracts most humor and silliness; he said "If you're going to tell a joke involving an animal, make it a duck." The word "duck" may have become an inherently funny word in many languages because ducks are seen as a silly animal, and their odd appearance compared to other birds. Of the many ducks in fiction, many are silly cartoon characters (see the New Scientist article [1] mentioning humor in the word "duck").

Trivia

  • Some Ancient Egyptian wall pictures show that (some of) the ships of the Sea Peoples had ornamental prows shaped like a duck's head.[4]

Gallery

See also

Look up duck in Wiktionary, the free dictionary.
  • Duck Hunting
  • Ducks Unlimited
  • Domesticated duck — ducks kept as pets or show animals and for meat and eggs and down
  • Duck pond
  • List of fictional ducks

References

  1. ^ Ogden, Evans. Dabbling Ducks. CWE. Retrieved on 2006-11-02.
  2. ^ Mallard - Nature Notes. Ducks Unlimited Canada. Retrieved on 2006-11-02.
  3. ^ Amos, Jonathan. Sound science is quackers. BBC News. Retrieved on 2006-11-02.
  4. ^ Cornelius. The Battle of the Nile. The South African Military History Society. Retrieved on 2006-11-02.

External links

  • "The quack doesn't echo" urban legend (from Snopes.com)
  • Guide to keeping ducks
  • Duck videos on the Internet Bird Collection
  • Scientists Track Pintail-Duck Migration to Learn More About the Species' Population Decline
  • Duck migration question
  • Ducks Unlimited Conservation
  • Raising Ducks, Geese & Swans
  • Tufted duck (good for foreign names)
  • list of books (useful looking abstracts)
  • San Francisco Bay Area Duck Population
  • Birds on the Brink (ruddy ducks' impact on white-headed ducks by crossbreeding in the wild)
  • Ducks at a Distance, by Rob Hines, available freely at Project Gutenberg - A modern illustrated guide to identification of US waterfowl.
  • Duck Stock Photos
Wikimedia Commons has media related to:
Duck
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Retrieved from "http://en.wikipedia.org/wiki/Duck"