What are the modifications that are observed in birds that help them fly?
Birds have undergone many structural adaptations to suit their aerial life. Some of these adaptations are as follows. Streamlined body for rapid and smooth movement. Vertical air movements help the bird with gliding and soaring in the air. Covering of feathers for insulation. Forelimbs are modified into wings and hind limbs used for walking, perching, and swimming. The presence of pneumatic bones reduces weight.
