The blue noddy or hinaokū or manuohina (Anous cerulea ) is a seabird in the family Laridae. It is also known as the blue-grey noddy.
It is found in American Samoa, the Cook Islands, Fiji, French Polynesia, Kiribati, Marshall Islands, New Caledonia, Samoa, Tonga (Niua), Tuvalu and Hawaii. It has occurred as a vagrant in Australia and Japan. Its natural habitat is open, shallow seas in tropical and subtropical regions.
The blue noddy is 25–28 cm (9.8–11.0 in) in length and has a wingspan of 46–60 cm (18–24 in).
