In the forests of New Guinea and Australia are some very unusual birds. Named after the elaborate structures, or bowers, built and decorated with colourful objects by the males, bowerbirds have one of the most unique courtship rituals in the animal kingdom.

Take an intimate look into the crazy courtship of these barmy birds.

A great bowerbird (Chlamydera nuchalis) bower decorated with unusual and colourful objects such as green glass, a plastic toy elephant and even a toy soldier. Queensland, Australia.

A male satin bowerbird (Ptilonorhynchus violaceus) puts on a display next to his bower. He collects brightly coloured objects to adorn his display arena, using them to catch the attention of passing females. Australia.

A male golden-fronted bowerbird (Amblyornis flavifrons) will decorate his bower with coloured fruit, hoping to attract a mate. They were first photographed in 2005 and are endemic to the Foja Mountains, Indonesia.

Male regent bowerbirds (Sericulus chrysocephalus) decorate their bowers with blue / green saliva, sometimes ‘painting' it on with leaves. Queensland, Australia.

The cone-shaped bower of a Vogelkop bowerbird (Amblyornis inornata) can reach a metre high, with a one and a half metre diameter. This bower has its entrance, or lawn, decorated with bright flowers. They are named after the Vogelkop Peninsula in Western New Guinea, Indonesia.

Great bowerbird (Chlamydera nuchalis) male performing a peripheral display around his bower while holding a red plastic cap. Queensland, Australia.

A brightly coloured male satin bowerbird (Ptilonorhynchus newtoniana) stands in front of his bower, while a less colourful female watches him. Satin bowerbirds are endemic to eastern Australia.

A male orange flame bowerbird (Sericulus aureus), whilst performing his dance, produces wheezing calls from his throat and pulses his pupil size in an effort to seduce a female. Papua New Guinea.

Catch up with the bowerbirds in Life Story via BBC iPlayer.