Tim Laman / Great Bowerbird (Chlamydera nuchalis) male in his bower. The center of the bower avenue is decorated with green fruits. Located on the campus of James Cook University, Townsville, Queensland, Australi...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male performing a peripheral display around his bower while holding a red plastic cap. James Cook University Campus, Townsville, Queensland, Australia, Sept 2009

Dave Watts / Great grey bowerbird {Chlamydera nuchalis} male at bower, Australia.

Gerry Ellis / Great Bowerbird (Chlamydera nuchalis) male in courting bower, Katherine Gorge National Park, Australia

Matthias Breiter / Great Bowerbird (Chlamydera nuchalis) male displaying in front of female in lek, Australia

Steven David Miller / Great grey bowerbird (Chlamydera nuchalis) bower of a male bird showing the bird's attraction to white objects which it uses to decorate the 'runway' of the bower, Berry Springs, Northern Territory,...

Martin Willis / Great Bowerbird (Chlamydera nuchalis) male decorating bower with shells, Townsville, Queensland, Australia

Martin Willis / Great Bowerbird (Chlamydera nuchalis) male coating the inside of the bower with fruit pulp, Townsville, Queensland, Australia

Tim Laman / Great Bowerbird (Chlamydera nuchalis) bower with green fruit and other decorations. James Cook University Campus, Townsville, Queensland, Australia, August 2008

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower decorated with green glass, white plastic, grey plastic, and other decorations. A vehicle passes on the road which is very close to this bower....

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower decorated with green glass, white plastic, grey plastic, and other decorations. This bower is very close to a road. James Cook University Campus...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male displaying to a female in his bower while holding a piece of pink cloth. This male has decorated his bower with green glass, white plastic, grey plastic, and...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male displaying to a female in his bower while holding a green fruit. This male has decorated his bower with green glass, white plastic, grey plastic, and other d...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower decorated with green glass, white plastic, grey plastic, and other decorations. This bower is very close to a road visible behind. James Cook Un...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male in his bower. The bower has various green and white and some red decorations including green fruits and various manmade objects. Located on the campus of Jam...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower, decorated with green glass, white plastic, grey plastic, and other decorations. James Cook University Campus, Townsville, Queensland, Australia...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male in front of his bower bowing and showing his pink crest to encourage the female (visible through the bower) to enter it. A young male watches. Bower is deco...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male displaying to a female who has entered his bower. He holds one of his prize decorations (a piece of grey plastic) in his beak. The bower has green and white...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male in his bower. The center of the bower avenue is decorated with green fruits. James Cook University. Townsville, Queensland, Australia, August 2008

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower. Located far from civilisation in the dry forest west of the village of Irvinebank. Decorations are mostly stones with a few snail shells, green...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male displaying to a female who has entered his bower. He holds one of his prize decorations (a brown fruit) in his beak. The bower has green and white and some r...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male poses holding a green fruit decoration in his beak to lure a nearby female to his bower. The bower has green and white and some red decorations including gre...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male at his bower decorated with green fruit and shells. James Cook University Campus, Townsville, Queensland, Australia, August 2008

Tim Laman / Interior decorations of a bower of a Great Bowerbird (Chlamydera nuchalis) located far from civilization in the dry forest west of the village of Irvinebank. Decorations are mostly stones with a few s...

Tim Laman / Great Bowerbird (Chlamydera nuchalis) bower with green glass, plastic toy elephant, toy soldier, and other decorations. Photographed at night by light painting with flashlight/torch. Townsville, Queen...

Konrad Wothe / Great Bowerbird (Chlamydera nuchalis) male carrying plastic in bower, Townsville, Queensland, Australia

Konrad Wothe / Great Bowerbird (Chlamydera nuchalis) male carrying plastic in bower, Townsville, Queensland, Australia

Konrad Wothe / Great Bowerbird (Chlamydera nuchalis) male in bower with many plastic items, Townsville, Queensland, Australia

Hanne & Jens Eriksen / Great grey bowerbird {Chlamydera nuchalis} male at bower, Australia, August

Hanne & Jens Eriksen / Great grey bowerbird {Chlamydera nuchalis} male collecting snail shell for bower, Australia, August

Matthias Breiter / Great Bowerbird (Chlamydera nuchalis) building his avenue bower with the foreground decorated with white shells to attract female, Territory Wildlife Park, Berry Springs, Australia

Steven David Miller / Male Great grey bowerbird {Chlamydera nuchalis} adjusting twigs in bower, in garden, Lake Argyle, Western Australia

Steven David Miller / Male Great grey bowerbird {Chlamydera nuchalis} tending to the entrance of bower, in garden, Lake Argyle, Western Australia

Steven David Miller / Male Great grey bowerbird {Chlamydera nuchalis} standing in front of bower, in garden, Lake Argyle, Western Australia - Sticks, bones, glass, berries and leaves make up the treasures in this bower

Steven David Miller / Great grey bowerbird male at bower {Chlamydera nuchalis} Lake Argyle, Western Australia

Steven David Miller / Great grey bowerbird male tending bower {Chlamydera nuchalis} Lake Argyle, Western Australia

Kim Taylor / Great Grey Bowerbird at bower (Chlamydera nuchalis). Australia.

Michael & Patricia Fogden / Great Bowerbird (Chlamydera nuchalis) male with decorated bower, Australia

Michael & Patricia Fogden / Great Bowerbird (Chlamydera nuchalis) male with decorated bower, Australia

Steve Knell / Great grey bowerbird at bower {Chlamydera nuchalis} Australia

Steve Knell / Great grey bowerbird at bower {Chlamydera nuchalis} Australia

Tony Heald / Great grey bowerbird displays neck crest {Chlamydera nuchalis} Northern Territory, Australia

Tony Heald / Great grey bowerbird displays neck crest {Chlamydera nuchalis} Northern Territory, Australia

Tony Heald / Great grey bowerbird decorating bower to attract a mate {Chlamydera nuchalis} Northern Territory, Australia.

Tony Heald / Great grey bowerbird head portrait {Chlamydera nuchalis} Northern Territory, Australia

Steven David Miller / Great grey bowerbird male at bower built to attract female {Chlamydera nuchalis} Western Australia

Steven David Miller / Great grey bowerbird male at bower built to attract femate {Chlamydera nuchalis} Western Australia

Martin Willis / Great Bowerbird (Chlamydera nuchalis) male arranging white and green objects at bower, Townsville, Queensland, Australia

Martin Willis / Great Bowerbird (Chlamydera nuchalis) male arranging white and green objects at bower, Townsville, Queensland, Australia

Martin Willis / Great Bowerbird (Chlamydera nuchalis) male placing twigs into the bower structure, Townsville, Queensland, Australia