One side of the place thus marked out runs parallel with the water's edge, and is left open for ingress or egress.
Having defined the limits of the rookery, the colony now begin to clear it of every species of rubbish, picking up stone by stone, and carrying them outside of the lines, and close by them, so as to form a wall on the three inland sides.

Just within this wall a perfectly level and smooth walk is formed, from six to eight feet wide, and extending around the encampment--thus serving the purpose of a general promenade.
The next process is to partition out the whole area into small squares exactly equal in size.

This is done by forming narrow paths, very smooth, and crossing each other at right angles throughout the entire extent of the rookery.

At each intersection of these paths the nest of an albatross is constructed, and a penguin's nest in the centre of each square--thus every penguin is surrounded by four albatrosses, and each albatross by a like number of penguins.

The penguin's nest consists of a hole in the earth, very shallow, being only just of sufficient depth to keep her single egg from rolling.