“In launching from the cliffs, they frequently utter a single plaintive cry, perform a curve, having its concavity upwards, then shake the tail, frequently the whole plumage, draw the feet backwards, placing them close under the tail, on each side, and cover them with the feathers. In some the feet were entirely covered, while in others parts of the toes were apparent. In flying, the body, tail, neck, and bill, are nearly in a straight line, the wings extended and never brought close to the body, and they move by regular flappings, alternating with short sailings. In alighting, they generally ascend in a long curve, keeping their feet spread, and come down rather heavily, often finding it difficult to balance themselves, and sometimes, when the place is very steep, or when another bird attacks them, flying off, to try it a second time. On the rocks they stand with the body nearly horizontal, or they lie on their belly, although some may be seen in an oblique or even nearly erect posture. They usually repose with the head resting between the shoulders, the bill concealed among the feathers of the back. I caught one in that state, by walking up to it, and seizing it by the tail and the tips of the wings, which cross each other over it. “Owing to their interference with each other, a constant noise is kept up amongst them. Their cry is hoarse and harsh, and may be expressed by the syllables _carra_, _carra_, _carra_, or _kirra_, _kirra_, _kirra_, or _crac_, _crac_, _crac_. The cry varies considerably in different individuals, some having a sharper voice than others, and when unusually irritated they repeat it with great rapidity. An ornithological writer thinks they cry _grog_, _grog_; but neither Mr AUDUBON nor myself interpreted their notes so, otherwise we could have satisfied a few at least, as we had a bottle of whisky and a keg of water. “The young are at first covered with very beautiful close snow-white down; at the age of about six weeks the feathers make their appearance among the down; when two months old the birds are pretty well fledged, and at the end of three months they are able to fly. The old bird at first feeds the young with a kind of fish-soup prepared in its gullet and stomach, and which it introduces drop by drop as it were into its throat. But when its nursling is pretty well grown, it places its bill within its mouth, and disgorges the fish either entire or in fragments. They never carry fish to the rock in their bills. The smallest number of young killed in a year is a thousand, the greatest two thousand; but in general the number is fifteen or sixteen hundred. After being plucked, they are sold at from sixpence to a shilling each. The price of a young bird for stuffing is two shillings; of an old bird five, of an egg one. For the information contained in this paragraph I am indebted to the keeper.