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
Sooty tern Sooty tern The sooty tern ("Onychoprion fuscatus") is a seabird in the family Laridae. It is a bird of the tropical oceans, breeding on islands throughout the equatorial zone. The sooty tern was described by Linnaeus in 1766 as "Sterna fuscata", bearing this name for many years until the genus "Sterna" was split up. It is now known as "Onychoprion fuscatus". The genus name is from Ancient Greek "onux", "claw", and "prion", "nail". The specific "fuscatus" is Latin for "dark". Colloquially, it is known as the wideawake tern or just wideawake. This refers to the incessant calls produced by a