We were watching David Attenborough's special on Birds of Paradise the other night, and were blown away by the segment on Bowerbirds. (Watch the video! It's amazing!) The male Bower Birds, who are native to New Guinea and Australia, create amazing habitats out of sticks and twigs ("bowers"), which they decorate with colorful findings from the forest in order to attract a mate. Acorns, berries, leaves, beetle shells... all perfectly arranged by color as any sophisticated decorator would do. Pretty impressive stuff.