Document ID: chunk:federal_register_of_legislation:F2022L00775:reg:18:p91
Version: federal_register_of_legislation:F2022L00775
Segment Type: reg
Provision Reference: reg 18 (pt 91/152)
Character Range: 291368–294263

It feeds mainly on lemmings during the summer, but will also take shrews, many insects, berries and small birds when rodents are scarce. Its winter diet is largely unknown, but probably includes marine insects and fish, with some scavenging and kleptoparasitism.

Population Estimates and Trends
A very preliminary estimate of the global population size is approximately 250,000–800,000 mature individuals (BirdLife International 2019). The population is suspected to be stable in the absence of evidence for any decreases or substantial threats. The Australian population and trends are unknown.

Conservation Concerns and Actions
Long-tailed Jaegers face few threats as adult birds but are susceptible to crashes in breeding success. Productivity is thought to fluctuate in accordance with changes in the population of lemmings, a key prey item during the breeding season (del Hoyo et al. 2019). This species does however seem to have a large number of adults which do not breed in any particular year, which may result in a buffering of the populations reproductive success in the face of adult numbers declining due to low food availability (Barraquand et al. 2014). Extended periods of lemming failure, however, are likely to begin to cause significant declines in the breeding population (Barraquand et al. 2014). In Australia, there are no factors thought to pose a genuine threat to this species.

Recommended Management Actions
      Gain an improved understanding of the at sea distribution in Australia
      Determine non-breeding areas and migration routes

126 Wildlife Conservation Plan for Seabirds
Species profiles

Common Noddy (Anous stolidus)

Life History and Distribution
The Common Noddy (Anous stolidus), also known as Brown Noddy, is the largest noddy, bigger and bulkier than Black Noddy (A. minutus) and Lesser Noddy (A. tenuirostris). The Common Noddy is a slender dark-brown seabird, with long rather stout bill, about the same length as head and appearing decurved over whole length. The Common Noddy is a tropical seabird with a worldwide distribution, ranging from the Pacific Ocean, including colonies off the Pacific coast of north-west South and Central America, the Indian Ocean including south-east Asia and in the Atlantic Ocean including a colony off the coast of Cameroon. Some colonies are also present in the sub-tropics with individuals from these colonies wintering in the tropics (del Hoyo et al. 1996). The species occurs around isolated, bare or vegetated, inshore or oceanic islands or coral reefs with rocky cliffs or offshore stacks (del Hoyo et al. 1996) and coral or sand beaches (Higgins and Davies 1996). It forages in the inshore waters surrounding such islands, often along the line of breakers or in lagoons (Higgins and Davies 1996), and disperses up to 180 km out into the oceanic zone to forage (Surman and Wooller