“They are very sociable birds at all times of the year, keeping in colonies even in the breeding season, a time when song- and other land-birds pair, and prefer to be alone. The nests, when on the ground or upon flat rocks, are built of grass, mosses, seaweed, and bits of soft driftwood formed into a shallow bowl. If the edges of this crumble or flatten while the birds are sitting, they use bunches of fresh grass or seaweed to keep it in repair, with the result that the nest is not only a very tasteful object, but it blends perfectly with its surroundings. “The eggs are very interesting because no two seem to be of the same colour, being of every shade of blue and gray, from the colour of summer sky and sand to the tint of the many-coloured, water-soaked rocks themselves. The markings vary also in shape and size, and are in every shade of brown, through lilac and purple, to black. The parents are very devoted to their nests, and take turns in sitting, though the eggs are often left to the care of the sun on days when it is sufficiently warm. When the young are first hatched, though covered with down, they are very weak in the neck and helpless; but in the course of a few hours the little Gulls are strong enough to walk, and the instinct to hide at the approach of anything strange comes to them very suddenly, so that a Gull only three or four hours old will slip out of the nest and either hide beneath a few grass blades or flatten itself in the sand, where, owing to its spotted, colour-protective down, it is almost invisible, so well does Nature care for her children—provided that man does not interfere. When a Gull nests in a tree, however, the little birds, not feeling the same necessity for hiding, do not try to leave the nest until the growth of their wings will let them fly. “On the sea beaches squids and marine refuse are fed to the young Gulls, but where they have nested near fresh, instead of salt, water many insects gleaned from the fields are eaten. “It was in the Gulls’ nesting season that the plunderers chose to go to their island haunts, steal the eggs, and kill the parent birds, whose devotion, like that of the White Heron, left the birds at the mercy of the plume hunters.