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Bowerbirds /ËbaÊÉrbÉrd/ make up the bird family Ptilonorhynchidae. They are renowned for their unique courtship behaviour, where males build a structure and decorate it with sticks and brightly coloured objects in an attempt to attract a mate.The family has 20 species in eight genera.he Ailuroedus catbirds are monogamous, with males raising chicks with their partner, but all other bowerbirds are polygynous, with the female building the nest and raising the young alone. These latter species are commonly dimorphic, with the female being more drab in color.
Baby birds go through three stages: 1  Hatchling (usually 0-3 days old). 2  Nestling (usually 3-13 days old). 3  Fledgling (13-14 days old or older). This bird is fully feathered. Its wings and tail may be short, and it may not be a great flyer, but it can walk, hop, or flutter. It has left the nest, though its parents may be nearby, taking good care of it.