有趣的鸟世界(分享)20090815

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有趣的鸟世界(分享)20090815

  1. 1. Interesting Facts !!!!<br />
  2. 2. About Our Feathered Friends???<br />
  3. 3. There are one to two billion living birds on this planet.<br />
  4. 4. Birds are warm blooded animals <br />
  5. 5. A bird’s normal body temperature is 7-8 degrees hotter than humans<br />
  6. 6. The characteristic feature of all birds is the feather<br />
  7. 7. A bird's feathers weigh more than its skeleton does<br />
  8. 8. Air sacs make up 1/5 of the body volume of a bird.<br />
  9. 9. A bird’s heart beats 1000 times per minute while flying<br />
  10. 10. When resting heart beats for 400 times<br />
  11. 11. The shape of a bird's beak directly corresponds to the type of diet <br />
  12. 12. Senses of sight, smell, and hearing are remarkably acute in birds.<br />
  13. 13. Birds, have no external ear, but can hear well<br />
  14. 14. Bird’s songs are composed of<br />
  15. 15. love-notes and pleasure-notes<br />
  16. 16. Birds require very little sleep<br />
  17. 17. Birds have a reduced sense of taste as compared to other animals <br />
  18. 18. The flightless birds use their wings as paddles<br />
  19. 19. when they are swimming.<br />
  20. 20. Three-quarters of the air a bird breathes is used <br /> for cooling down body temperature<br />
  21. 21. since they are unable to sweat.<br />
  22. 22. Birds are loved for their aesthetic value<br />
  23. 23. Birds disperse seeds<br />
  24. 24. Birds control rodents, insects and pests<br />
  25. 25. Birds protect our crops, forests and ecosystem<br />
  26. 26. Birds play a vital role in shaping our economy<br />
  27. 27. Birds have great economic and personal value to people<br />
  28. 28. Global Warming is the greatest threat to Birds<br />
  29. 29. Several species of Birds are facing extinction due to climate change. <br />
  30. 30. Climate change has affected their<br />
  31. 31. migration, breeding, nesting, hatching of eggs<br />
  32. 32. and several other bird behaviors<br />
  33. 33. Save our Ecosystem<br />
  34. 34. Protect our friends to save our Planet<br />Kausalya Janardanan<br />

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