1 Birds are interesting animals. 2 They do what people only dream of doing; they fly. 3 Birds also sing beautiful melodies, but most interesting to me are the nests that they build. 4 They use any material they can find, including sticks, trash, foil, and hair. 5 My friend told me a true story about a crow, it picked up her gold necklace. 6 It flew away with her necklace in its mouth and took it to include in a nest. 7 Another interesting bird is the barn swallow. 8 Barn swallows build their nests out of mud and straw, the nests look like tiny adobes. 9 Not all birds build nests in trees some build nests on cliff wall. 10 Tropical birds build nests in rock crevices along the beach. 11 If you try to disturb the nest, the birds bite your hand. 12 They bite hard, sometimes they won't let go. 13 Other birds weave nests out of cotton and twigs the nests look like baskets. 14 These nests are very durable, and the birds use them year after year. 15 Eagles and hawks build huge nests, usually high in the mountains. 16 They build strong nests they also guard these nests from intruders. 17 Nests come in all shapes and sizes, also they are made of all kinds of materials. 18 Birds are amazing architects, I wish I could be as creative when I build my house.