Roseate tern and the bill black. Juvenile roseate terns have a scaly appearance like juvenile Sandwich Terns, but a fuller black cap than that species. This species breeds in colonies on coasts and islands, at times with other seabirds. In Australian territory, it has been recorded nesting alongside the black-naped tern ("S. sumatrana"), lesser crested tern ("Thalasseus bengalensis"), crested tern ("T. bergii"), fairy tern ("Sternula nereis"), bridled tern ("Onychoprion anaethetus") and silver gull ("Chroicocephalus novaehollandiae"). It nests in a ground scrape, often in a hollow or under dense vegetation, and lays one or two (rarely three) eggs. It is less defensive of
White tern White tern The white tern ("Gygis alba") is a small seabird found across the tropical oceans of the world. It is sometimes known as the fairy tern although this name is potentially confusing as it is the common name of the fairy tern ("Sternula nereis"). Other names for the species include angel tern and white noddy. The white tern was first formally described by the Swedish naturalist Anders Sparrman in 1786 under the binomial name "Sterna alba". The genus "Gygis" was introduced by the German zoologist Johann Georg Wagler in 1832. The name "Gygis" is from the Ancient Greek "guges"