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Birds. 3/27/07 How are birds related to mammals?. Birds. Kingdom: Animalia Phylum: Chordata Class: Aves Definition: Endothermic, feathers, 2 legs with scales, front limbs are wings Example: Parrot, blue birds, robins, cardinals, etc. Habitat: Everywhere. Physical Characteristics.

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birds

Birds

3/27/07

How are birds related to mammals?

birds3
Birds
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Aves
  • Definition: Endothermic, feathers, 2 legs with scales, front limbs are wings
  • Example: Parrot, blue birds, robins, cardinals, etc.
  • Habitat: Everywhere
physical characteristics
Physical Characteristics
  • Endothermic, feathers; 2 legs with scales, wings, hollow bones
  • 2 types of feathers
    • Contour feathers—flight
    • Down feathers– warmth and waterproofing
feeding
Feeding
  • Very efficient digestive system
  • Beak is adapted for food
  • No teeth
  • Mouth esophagus crop  stomach gizzard  intestines cloaca
  • Gizzard part of stomach
  • Some birds regurgitate food from crop to feed young
excretion
Excretion
  • Cloaca reabsorbs water so waste becomes white paste
  • Kidneys filter waste from blood
respiration
Respiration
  • Efficient
  • Air flows in 1 direction
circulation
Circulation
  • 4 Chambered heart
    • 2 ventricles and 2 atrium
    • Separate oxygen rich from oxygen poor blood
evolution
Evolution
  • Dinosaur with feathers
  • First birdlike animal about 150 million years ago called Archaeopteryx
nervous system and movement
Nervous System and Movement
  • Brain large for body size
  • Movement
    • Walk, run, swim, and fly
response
Response
  • See color well
  • Good hearing
  • Not good taste and smell
classification
Classification
  • Similar Characteristics
reproduction
Reproduction
  • Amniotic egg
  • Sex organs shrink until mating
defense
Defense
  • Flight
  • Singing
  • Beaks
groups of birds
Groups of Birds
  • 30 different orders
  • Most common passerines (perching birds)
    • 5000 species perching birds
  • Birds of prey
  • Parrots
  • Pelicans and relatives
  • Cavity-nesting birds (woodpecker)
  • Herons and relatives
  • Ostriches and relatives
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