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BIRDS

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BIRDS. CHARASTERISTICS OF BIRDS: ENDOTHERMIC TWO WINGS, TWO LEGS BILL OR BEAK COVERED MOSTLY WITH FEATHERS LAY HARD-SHELLED EGGS & SIT ON THEM TO KEEP THEM WARM UNTIL THEY HATCH. ADAPTATIONS FOR FLIGHT:. LIGHT, YET STRONG SKELETONS THE INSIDE OF ITS BONES IS ALMOST HOLLOW

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Presentation Transcript
birds
BIRDS

CHARASTERISTICS OF BIRDS:

  • ENDOTHERMIC
  • TWO WINGS, TWO LEGS
  • BILL OR BEAK
  • COVERED MOSTLY WITH FEATHERS
  • LAY HARD-SHELLED EGGS & SIT ON THEM TO KEEP THEM WARM UNTIL THEY HATCH
adaptations for flight
ADAPTATIONS FOR FLIGHT:
  • LIGHT, YET STRONG SKELETONS
  • THE INSIDE OF ITS BONES IS ALMOST HOLLOW
  • ITS TAIL ISHOLLOW & FUSED TOGETHER TO PROVIDE NEEDED RIGIDITY, STRENGTH, AND STABILITY
  • USE TAIL TO STEER
  • LARGE, EFFICIENT HEART
  • LIFT IS WHAT ALLOWS BIRDS, AS WELL AS PLANES, TO STAY IN FLIGHT
2 main types of feathers
2 MAIN TYPES OF FEATHERS:
  • CONTOUR FEATHERS:

* GIVE THEM THEIR STREAMLINE SHAPE

AND COLORING

* OUTER FEATHERS HELP A BIRD MOVE THROUGH AIR OR WATER

* PROTECT BIRDS FROM PREDATORS BECAUSE THEY CAN BE A FORM OF

CAMOUFLAGE

slide4

DOWN FEATHERS:

* TRAP AND KEEP AIR NEXT TO THEIR

BODIES

* PROVIDE INSULATION

care of feathers
CARE OF FEATHERS:
  • WELL-MAINTAINED FEATHERS KEEP BIRDS DRY, WARM, AND ABLE TO FLY
  • THEY PREEN TO CLEAN AND REORGANIZE THEIR FEATHERS AND TO SPREAD OIL OVER THEIR BODIES AND FEATHERS
  • THIS OIL KEEPS THE SKIN SOFT, AND THE FEATHERS AND SCALES FROM BECOMING BRITTLE