Stacy Tornio 
Bird Nests 

Some birds make their nests out of grass, twigs, and leaves. Others use mud, fur, or feathers. They might even use paper or yarn. Find out more in Bird Nests, a title in the Nature’s Engineers series. Nature’s Engineers is a series of AV2 media enhanced books. Each title in the series features easy-to-read text, stunning visuals, and a challenging educational activity. A unique book code printed on page 2 unlocks
multimedia content. These books come alive with video, audio, weblinks, slideshows, activities, hands-on experiments, and much more.