S1, E6: Birds have become expert communicators and use extraordinary patterns of color and beautiful songs to deter predators, intimidate rivals and even impress potential mates. In Patagonia, one of the world's largest woodpeckers taps out communications using its beak. While the lyrebird of southern Australia has its own comprehensive selection of musical notes, but it also steals sounds from its environment and incorporates them into its own repertoire.