Q2) Birds have __________________ which makes their body light to fly.

Q3) The wings of a bird are made up of _____________.

Q4) Bird have pointed, sharp and ______________ shaped body.

Q5) There are about ___________ different kinds of birds.

Q6) __________ is the smallest bird.

Q7) ___________ is the largest bird.

Q8) Birds make various __________ to communicate about danger.

Q9) Birds make nests to _________ eggs and _______ their young ones.

Q10) __________ is the longest travelling migratory bird.