When the mounds are completed the birds burrow holes in the centre and deposit their eggs, which are left to be hatched by the moist heat engendered by the decaying vegetation. Forty or fifty brick-red colored eggs as large as those of a turkey are sometimes found in a single nest. Both the eggs and the parent birds are excellent eating.
The Australian bee-eater, a bird of attractive plumage, is found all over the northern islets of the Barrier Reef. It has a long, sharp curved bill and two long, narrow feathers in its tail. Its beautiful green plumage, varied with rich brown and black, and vivid blue on the throat, makes it an attractive bird.
The sea-anemones of the Great Barrier Reef are remarkable for both beauty of color and structure; some of them measure four or five inches across the expanded disk. In Torres Strait are seen brilliant sea-anemones around the border of whose disks are jewel-like clusters. These beautiful sea animals present the appearance of delicately tinted flowers adorned with the most exquisite gems.
Starfish and sea-urchins of all descriptions are found in immense numbers. The five-rayed varieties of starfish are universally condemned as insatiable foes of the oyster family, and the oyster cultivators destroy all they can find. To dismember the body of the starfish by pulling off the finger-like rays does not kill the animal, for not only does each fish produce new rays but each ray will produce a new starfish. The predatory starfish fastens itself to both valves of the oyster, forces them open, and consumes the fleshy part. It is destructive not only to oysters but to clams, mussels, barnacles, snails, worms, and small crustacea as well.
The variety of sea life about the great reef is legion. Among the bivalves the most remarkable for the size and weight of the shells are the tridachna and hippopus. In some localities they are so numerous that their shells have been burned to make lime. A pair of tridachna valves often weighs several hundred pounds.
To the naturalist the Great Barrier Reef is an object of special attraction.