Bowerbirds of Australia

SatinBowerbird1Back in 2008 one of our team, Peter Rowland, wrote a book on the Bowerbirds of Australia and New Guinea. Part of the book-writing process involved sourcing images of the different species and the various types of bowers that the males build to attract their potential mates. While images of most of the Australian species proved to be quite easy to obtain, the New Guinea species were somewhat more difficult to find.

Peter had published some scientific articles in a New Guinea bird journal called Muruk (which is the local name for the Cassowary in New Guinea), so he sent an email to the editor of the journal in the hope of getting the details of local photographers that might have pictures of Bowerbirds. Peter was given the name of a photographer who had recently completed a trip to the region, but was based in the United Kingdom. This person was Aniket Sardana, another member of our team. Aniket sent Peter through these shots of the bower of one of the New Guinea Bowerbirds, the Vogelkop Bowerbird.

The bower of a Vogelkop Bowerbird showing decorations
The Spectacular Bower of the Male Vogelkop Bowerbird of New Guinea

Australia’s Bowerbirds

Eight of the 20 species of Bowerbirds are only found in Australia, and a further two species are found in both Australia and New Guinea. These ten species are the Spotted Catbird (found in both Australia and New Guinea), Green Catbird, Tooth-billed Bowerbird, Golden Bowerbird, Regent Bowerbird, Satin Bowerbird, Spotted Bowerbird, Western Bowerbird, Great Bowerbird and the Fawn-breasted Bowerbird (found in both Australia and New Guinea).

Bowers

The Bowerbirds are famed for their unique bower-building behaviour and, in some species, such as New Guinea’s Vogelkop Bowerbird, the bowers are so complex (image above) that early zoologists thought that native men and women had built them for their children to play in. They could not believe that these amazing structures were built by such a small bird.

There are four types of bowers that have been described: the “court” of the Tooth-billed Bowerbird, the “mat” of the Archbold’s Bowerbird, the “avenue” of the ten species that belong to the genera Ptilonorhynchus and Sericulus, and the “maypole” of the five species in the genus Amblyornis. The Catbirds are not known to construct and maintain bowers.

Interior Decorating

Male bowerbirds decorate their bowers with an assortment of objects, including stones, fruit, leaves, and other naturally objects. Around human habitation the birds will use man-made objects, including pegs, straws, bottle tops, bullet casings, glass and even glass eyes! The sticks used in construction are also painted by some bowerbirds, the paint is made from fruits and flowers that are chewed up and mixed with the bird’s saliva.

 

Great Bowerbirds build avenue-type bowers
A male Great Bowerbird painting his bower in Kakadu, NT

 

The bower of a Great Bowerbird, showing glass and rocks used for decorations
The bower of a Great Bowerbird from the Kimberley region in Western Australia

 

A male Satin Bowerbird attends to his bower in the Wollongong Botanic Gardens
This male Satin Bowerbird is just getting its mature plumage at 6 years of age

 

This bower of A Satin Bowerbird in Wollongong has bright blue straws, bottle tops and pegs for decoration
When near human habitation, Satin Bowerbirds use man-made objects for decorations

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