Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male, at bower collecting fruits and twigs as part of courtship display, Foja Mountains, West Papua.

Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male, bringing a new fruit to add to the decorations at his bower, Foja Mountains, West Papua.

Tim Laman / Berlepschi's parotia bird of paradise (Parotia berlepschi) male, perched on perch at his display court, Foja Mountains, West Papua.

Tim Laman / Golden-fronted bowerbird (Amblyornis flavifrons) male at bower, holding a blue berry in its beak used in display, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch mid-display with plumes raised over his head, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch mid-display with plumes raised over his head, Foja Mountains, West Papua.

Tim Laman / Black sicklebill bird of paradise (Epimachus fastuosus) male, at his display perch, Foja Mountains, West Papua.

Tim Laman / Yellow-fronted bowerbird (Amblyornis flavifrons) male, courtship display at bower, holding a blue fruit in his beak and keeping on the opposite side of the bower from the female, Foja Mountains, West...

Tim Laman / Yellow-fronted bowerbird (Amblyornis flavifrons) male, courtship display at bower, holding a blue fruit in his beak and keeping on the opposite side of the bower from the female, Foja Mountains, West...

Joel Sartore / Photo Ark / Aardwolf (Proteles cristatus septentrionalis) male, displaying its mane, portrait, Cincinnati Zoo, Ohio. Captive, occurs in East Africa.