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Red-billed Gull

A species of Masked Gulls
Scientific name : Chroicocephalus scopulinus Genus : Masked Gulls

Red-billed Gull, A species of Masked Gulls
Botanical name: Chroicocephalus scopulinus
Genus: Masked Gulls

Description

The red-billed gull is a fairly small gull with an all-red bill, red eye ring, red legs and feet, pale grey wings with black wingtips. The rest of the body and tail are white. There is virtually no visual difference between the male and female birds. Juvenile gulls have a dark brown bill with only hints of red, making them difficult to distinguish from the black-billed gull. The legs are also brown and there are brown spots on the grey wings.
Size
37 cm
Colors
Gray
White
Life Expectancy
12-30 years
Feeding Habits
planktonic crustaceans, earthworms, kelp-fly larvae, fish larvae, marine invertebrates, refuse
Habitat
coastlines of New Zealand, towns, wet fields, harbours, cliffs, sandy, rocky shores

General Info

Behavior

Behaviourally, the red-billed gull is a typical gull. It is an aggressive scavenger and kleptoparasite. Since European settlement its numbers have increased, especially around coastal towns and cities where it can scavenge from urban waste. It normally feeds on small fish, shell fish and worms (from pastures), and sometimes berries, lizards and insects.

Distribution Area

It is the smallest gull commonly seen in New Zealand. The population is estimated at 500,000. It was formerly considered a distinctive species, but looks similar to the silver gull found in Australia, and is now considered to be a subspecies.

Scientific Classification

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