Population status and migration of the Gannet, Sula bassana serrator, of Lawrence Rocks, Vic

Abstract

The breeding population of Sula bassana serrator on Lawrence Rocks has apparently increased in recent years. In December 1961, 639 breeding pairs were counted.

Banding has shown that juvenile S. b. serrator of the Australian breeding population, like other S. bassana populations, leave their natal colonies and move long distances into areas with a warmer sea temperature. They apparently stay there for two to four years, after which they usually return to the natal area.