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The plumage of the immature bird is mottled with brown with the white and grey not being attained until the fourth or fifth year. The eyes are a pale yellow at all ages.

Biology:
Size: 21 to 22 inches long. Wingspan of 55 inches.
Habitat: Coasts, inland areas, tips, towns and cities.

Nest: Constructed as a large tangle of grass or seaweed on a cliff ledge or grassy side of a sloping cliff, however now known to nest in coastal towns and cities on factory roofs and large buildings using various nesting materials.

Eggs: Lays three to five eggs as shown below. Breeds late April onwards. Both parents incubate and tend the young who fly after about 6 weeks.

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