Larus novaehollandiae, Silver Gull, Camar Perak

Written by on November 19, 2010 in Indonesia Bird with 0 Comments

Larus novaehollandiae, Silver Gull, Camar Perak

The Silver Gull Larus novaehollandiae, Silver Gull, Camar Perak(Chroicocephalus novaehollandiae) also known simply as “seagull” in Australia, is the most common gull seen in Australia. It has been found throughout the continent, but particularly coastal areas. The South African Hartlaub’s Gull (C. hartlaubii) and the New Zealand Red-billed Gull (C. scopulinus) were formerly sometimes considered to be subspecies of the Silver Gull. As is the case with many gulls, it has traditionally been placed in the genus Larus.

The Silver Gull should not be confused with the Herring Gull, which is called “silver gull” in many other languages (scientific name Larus argentatus, German Silberm? French Go?nd argent?Dutch zilvermeeuw) but is a much larger, robust gull with no overlap in range. It has a sharp voice consisting of a variety of calls.
The Silver Gull was first described by James Francis Stephens in 1826.
Description

The head, body and tail are white. The wings are light grey with white spotted, black tips. Adults range from 40-45 cm in length. Mean wing span is 94 cm. Juveniles have brown patterns on their wings, and a dark beak. Adults have bright red beaks – the brighter the red, the older the bird.
Distribution and habitat
Silver gulls are found in all states of Australia. It is a common species, having adapted well to urban environments and thriving around shopping centers and garbage dumps.

Silver Gulls have twice been recorded in the USA: One bird was shot in August 1947 at the mouth of the Genessee River, Lake Ontario. Another one was photographed in Salem County, New Jersey, in autumn 1996. Both are nowadays believed to have escaped from captivity (AOU, 2000).
Feeding

The silver gull naturally feeds on worms, fish, insects and crustaceans. It is a successful scavenger, allowing increased numbers near human settlements.
Breeding

Breeding occurs from August to December. The nest is located on the ground and consists of seaweed, roots and plant stems. The nests may be found in low shrubs, rocks and jetties. Typical clutch size is 1-3 eggs.

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