"Swinging bachelors often try to impress potential mates with their fancy cars, houses and jewelry, and it appears that male bowerbirds of Papua New Guinea employ a similar mating strategy by building elaborate tree homes. National Geographic magazine noted that the birds can "build a hut that looks like a doll's house" or "arrange flowers, leaves and mushrooms in such an artistic manner" that researchers liken them to the craftsmanship of humans. Biologists observed females gravitating to males who had such structures as a three-foot tower of twigs, nuts and beetles, decorated with
"garlands of caterpillar feces glistening with dew." [National Geographic]"
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