They are a small bird, about 30 cm (12 in) long and weighing about 150 g (5 oz).
The young males and females look the same, with grey to green, brown and dark brown feathers.
The belly is coloured a pale brown to cream color, with dark olive to grey crescent shapes.
When the male becomes sexually mature at about seven years old he grows black feathers, with a shiny blue-purple shine.
The male also has bright blue eyes, and a blue beak which is yellow on the end.
They are a small bird, about 30 cm (12 in) long and weighing about 150 g (5 oz). The young males and females look the same, with grey to green, brown and dark brown feathers. The belly is coloured a pale brown to cream color, with dark olive to grey crescent shapes. When the male becomes sexually mature at about seven years old he grows black feathers, with a shiny blue-purple shine. The male also has bright blue eyes, and a blue beak which is yellow on the end.
Satin bowerbird