Steven David Miller / Satin bowerbird decorated bower (Ptilonorhynchus violaceus) - always uses blue objects, Lamington National Park, Queensland, Australia. No permission for website

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

Peter Nearhos / John Downer Pr / Satin bowerbird stealing blue trinkets to decorate bower {Ptilonorhynchus violaceus} Resolution restriction - image digitised from film, 'Weird Nature' tv series.

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

Mike Potts / Male Flamed bowerbird at bower {Sericulus aureus} Irian Jaya / West Papua, New Guinea (West Papua).