Animal Homes: The Nest - Preview
Preview: Season 33 Episode 11 | 1m 8s
Bird nests come in all shapes and sizes, crafted from an inexhaustible diversity of materials, including fur, grasses, leaves, mosses, sticks and twigs, bones, wool, mud and spider silk. Quite a few also contain man-made materials – colorful twine, bits of wire, even plastic bags. Each one is a remarkable work of art, built with just a beak!