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Chlamydera, Sericulus and Ptilonorhynchus bowerbirds build an avenue-type bower made of two walls of vertically placed sticks. [14] Ailuroedus catbirds are the only species which do not construct either bowers or display courts. [15] In and around the bower, the male places a variety of brightly colored objects he has collected.
Like all bowerbirds, the satin bowerbird shows highly complex courtship behaviour. Mate choice in satin bowerbirds has been studied in detail. [ 7 ] Males build specialised stick structures, called bowers, which they decorate with blue, yellow, and shiny objects, including berries, flowers, snail shells, and plastic items such as ballpoint pens ...
There seems to be a bowerbird rule: the more elaborate the bower the plainer the bird – the simpler the bower, the more vivid the plumage. David mischievously moves a leaf or a piece of lichen to see what the bird will do, then moves away. The bird flies back scoldingly and fussily returns his artistic display to its former perfection ...
The snowy owl has to do so itself, because of its habitat; however, the maleo is able to take advantage of solar heating. The amount of eggs laid also varies: for example, the kiwi lays just one, whereas the blue tit will deposit many. Their mottled surface serves to camouflage them. Birds that steal eggs include toucans and currawongs.
The regent bowerbird (Sericulus chrysocephalus) is a medium-sized, up to 25 cm long, sexually dimorphic bowerbird. The male bird is black with a golden orange-yellow crown, mantle and black-tipped wing feathers. It has yellow bill, black feet and yellow iris. The female is a brown bird with whitish or fawn markings, grey bill, black feet and crown.
The spotted bowerbird (Chlamydera maculata) is a sedentary, mid-sized passerine found across broad parts of the drier habitats of eastern Australia. The species is known for its remarkable behaviours, like many other bowerbirds (Ptilonorynchidae), which include bower building and decorating, courtship displays and vocal mimicry.
Molecular evidence suggests Ailuroedus is a sister group to the other bowerbirds, diverging into the only genus within the eight species of Australian bowerbirds that is monogamous and does not build a bower or clear a court for mating. [3] [4] The other bowerbirds are polygynous and make various forms of bowers or create stages for mating. [5]
Satin Bowerbirds: bowerbirds are famous because of their complex male courtship, in which they utilize decorations of certain colours. [105] This suggests that male bowerbirds with enhanced cognitive abilities should have a selective advantage during male courtship. [ 106 ]