Which Australian bird decorates a courtship bower with blue objects?

The satin bowerbird is the Australian bird whose male decorates a courtship bower with blue objects.

Instead of building a nest for raising chicks, the male constructs a bower: an avenue-like structure made from sticks. He collects and arranges decorations around it to attract females, often favouring blue feathers, berries, flowers, plastic items, or other human-made objects.

The male’s glossy blue-black adult plumage contrasts with the greener, mottled appearance of females and young birds. Females inspect bowers and displays before choosing a mate, so decoration and behaviour are central to reproduction.

Several bowerbird species occur in Australia, and not all use the same colours. The satin bowerbird is especially associated with blue decoration, while some related species use different arrangements or colour preferences. The bower is not a nest and does not contain eggs.