A census in 1988–89 recorded roughly 450 birds, although that number declined sharply over the following decade, due to causes not fully understood. By the late 1990s and early 2000s, censuses suggested that the bird's numbers had stabilised at about 350 adults.
In 1988–89, a census recorded roughly 450 birds; however, their numbers sharply declined over the following decade due to unknown factors. By the late 1990s and early 2000s, censuses suggested that the bird population had stabilized at about 350 adults.