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Seabirds, along with some Australian and Southern African landbirds such as the southern ground hornbill [72] or white-winged chough, [73] have the longest chick-rearing stage of any bird on earth. [1] It is not unusual for many seabirds to spend 3–4 months raising their chicks until they are able to fledge and forage independently.
Seabirds generally live longer, breed later and have fewer young than other birds, but they invest a great deal of time in their young. Most species nest in colonies, varying in size from a few dozen birds to millions.
In the 1980s, the commission denied the Remmenga family's petition to build a home 1 mi (1.6 km) from the beach in Hollister Ranch unless the public were allowed access through their property. Alternatively, the Remmengas were given the option to pay the commission $5,000 which was said to help fund public pathways to the beach.
The female booby reaches about 80 centimetres (31 in) in length, their wingspan measures up to 150 cm (4.9 ft), and they can weigh up to 1,300 g (2.9 lb). The male booby reaches about 75 centimetres (30 in) in length, their wingspan measures up to 140 cm (4.6 ft), and they can weigh up to 1,000 g (2.2 lb). [12]
Their nests are shallow depressions scraped into the sand by an adult. [9] Breeding adults will make 5 or more of these scrapes, then choose one to line with shells and/or pebbles. [8] These depressions are about 8 inches (20 cm) across and 2.5 inches (6.4 cm) deep. [8] A female oystercatcher lays 2–4 eggs per nest.
Nesting colonies are very common among seabirds on cliffs and islands. Nearly 95% of seabirds are colonial, [3] leading to the usage, seabird colony, sometimes called a rookery. Many species of terns nest in colonies on the ground. Herons, egrets, storks, and other large waterfowl also nest communally in what are called heronries.
What to do if you see oiled wildlife. If anyone stumbles upon wildlife covered in oil in Washington or Oregon, they should report it by calling 1-800-222-4737.
Castle Rock remained in private ownership until 1979, [3] when the United States Fish and Wildlife Service purchased it from The Nature Conservancy to conserve habitat for marine mammals and seabirds. [4] Castle Rock refuge is not open to the public to prevent disturbance to the marine mammals and sea birds. [3]