11 inches. Male and female identical in appearance. Small tern pearl grey colours with sometimes the head, the underneath of the body and wings are white. Juveniles have dark-grey feathers on the tail. The legs are long. The wings are pointed, the tail is forked. The beak and legs are black. The darker birds are found in the Marquesas. Those of the Tuamotu are completely grey. The clearer individuals are found in the Austral.
To learn more about the differences between the Blue Noddy and the Grey Noddy (recently identified), please read article of Cibois A. et al : http://onlinelibrary.wiley.com/doi/10.1111/ibi.12363/full
To know the respective distributions of the two species:
Blue Noddy: Anous ceruleus
Grey Noddy: Anous albivittus
It fishes near the coast, less than two kilometres away from the shore or in the lagoon of the atolls.
“Wow, wow …” repeated several times, plaintive and tenuous.
To listen the Blue Noddy:
Cephalopods, small fish.
Nests under bushes or in the cavities formed by coral blocks in the atolls. Niches also on the ledges of cliffs in the volcanic islands and islets. The egg, 38 x 27 mm, is hatched by both adults. Reproduction is more or less spread out throughout the year depending on the site, at least from March to December in the Marquesas and from October to December in Rapa.
Original text by Caroline BLANVILLAIN – Supplements and update by various members of the SOP Manu.
Scientific Name: Anous ceruleus F.D. Bennett, 1840
Nganga, gaga (Mangareva), parara, kaka (Marquesas), a’a, paraki (Rapa)
The species is classified as “Least Concern” (LC) on the IUCN Red List.