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Birds And their characteristics. By Brittanie Sims. General Info. Belong to class Aves More than 8,600 species of modern birds Have feathers-lightweight, modified scale that provides insulation & enables flight Have wings Endotherms Can live in all environments

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Birds And their characteristics


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general info
General Info
  • Belong to class Aves
  • More than 8,600 species of modern birds
  • Have feathers-lightweight, modified scale that provides insulation & enables flight
  • Have wings
  • Endotherms
  • Can live in all environments
  • Sometimes referred to as a feathered dinosaur
f eathers
Feathers
  • A large bird can have 25,000 or more contour feathers with a million tiny hooks that interlock and make a “fabric” for flight
  • Fluffy down feathers have no hooks to hold the filaments together. Act as insulators to keep the bird warm
  • Contour feathers help to enable flight
  • Wing/tail feathers usually lost in pairs so that the bird can maintain its balance in flight
bones
Bones
  • Large Breastbone (sternum) powerful flight muscles attached to breast bone & to the upper bone of each wing
  • Thin hollow bones to maintain low weight & make flight easier
basic body info
Basic Body Info
  • 4 chambered heart beats rapidly and moves oxygenated blood through the body
  • Efficient circulation supplies cells with the oxygen needed to produce energy
  • Respiratory system supplies oxygenated air to the lungs when it inhales/exhales
  • Digestive system of a bird is adapted for dealing with large quantities of food that must be eaten to maintain the level of energy needed for flight
c ont
cont.
  • Legs are made up of mostly skin, bones, and tendons
  • Feet are adapted for perching, swimming, walking, or catching prey
  • Have beaks made up of a protein called keratin
  • Have no teeth
beaks eggs
Beaks/Eggs
  • Shape of beak gives you an idea of the type of bird
    • Long, narrow-nectar
    • Large-tear apart prey
    • Huge-carry fish
    • Short, stout-cracking seeds
    • Eggs are distinctive and often the species of a bird can be determined by size, color, and shape of the egg
    • Incubate/sit on eggs to keep them warm, turning them periodically so that they can properly develop