Most birds use twigs , leaves, thread dry grass , cotton, wool , paper , etc. to build their nests 

a) sparrow and pigeon build nests in houses, trees and safe places . they use grass , leaves, feathers etc 

b) Tailor bird - makes a beautiful nest using its sharp beak as needle to sew leaves with thread of wool and cotton.

c) Owls build nest in the hallows of the tree or walls

d) Penguin build nest using pebbles and stones

e) Weaver bird - ties dry grass and twigs into knots to make a big and strong nest