Birds come in a dazzling array of sizes, shapes and colours, with abilities and behaviour worth making a song and dance about Do you know how hornbills make a home? Or why sparrows hop? Get ready to admire the peacock's stunning plumage, glide with the wandering albatross and dive with penguins From the everyday to the exotic, here are just some awesome representatives from this animal group that comprises more than 10,000 species worldwide.