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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BIRDS

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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


Birds

  • 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


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