Going down the dune, of course, presented no problem to them, and they accomplished this in two ways, both equally amusing to watch. Either they would walk down, starting very sedately and getting quicker and quicker the steeper the slope became, until they were galloping along in the most undignified way, or else they would slide down on their tummies, using their wings and feet to propel their bodies over the surface of the sand exactly as if they were swimming.

With either method they reached the bottom of the dune in a small avalanche of fine sand, and they would get to their feet, shake themselves, and set off grimly through the scrub towards the beach. But it was the last few hundred yards of beach that seemed to make them suffer most. There was the sea, blue, glittering, lisping seductively on the shore, and to get to it they had to drag their tired bodies over the stony beach, where the pebbles scrunched and wobbled under their feet, throwing them off balance.* But at last it was over, and they ran the last few feet to the edge of the waves in a curious crouching position, then suddenly straightened up and plunged into the cool water. For ten minutes or so they whirled and ducked in a shimmer of sun ripples, washing the dust and sand from their heads and wings, fluttering their hot, sore feet in the water in ecstasy, whirling and bobbing, disappearing beneath the water, and popping up again like corks. Then, thoroughly refreshed, they would set about the stern task of fishing, undaunted by the fact that they would have to face that difficult journey once again before the food they caught could be delivered to their hungry young.

Once they had plodded their way – full of fish – back over the hot terrain to the colony, they would have to start on the hectic job of feeding their ravenous young. This feat resembled a cross between a boxing- and an all-in wrestling-match,* and was fascinating and amusing to watch. There was one family that lived in a burrow close to the spot where we parked the Land-Rover each day, and both the parent birds and their young got so used to our presence that they allowed us to sit and film them at a distance of about twenty feet, so we could see every detail of the feeding process very closely. Once the parent bird reached the edge of the colony it had to run the gauntlet* of several thousand youngsters before it reached its own nest-burrow and babies. All these youngsters were convinced that, by launching themselves at the adult bird in a sort of tackle, they could get it to regurgitate* the food it was carrying. So the adult had to avoid the attacks of these fat, furry youngsters by dodging to and fro like a skilful centre-forward on a football field. Generally the parent would end up at its nest-burrow, still hotly pursued by two or three strange chicks, who were grimly determined to make it produce food. When it reached home the adult would suddenly lose patience with its pursuers, and, rounding on them, would proceed to beat them up in no uncertain fashion,* pecking at them so viciously that large quantities of the babies' fluff would be pecked away, and float like thistledown across the colony.

Having routed the strange babies, it would then turn its attention to its own chicks, who were by now attacking it in the same way as the others had done, uttering shrill wheezing cries of hunger and impatience. It would squat down at the entrance to the burrow and stare at its feet pensively, making motions like someone trying to stifle an acute attack of hiccups. On seeing this the youngsters would work themselves into a frenzy of delighted anticipation, uttering their wild, wheezing cries, flapping their wings frantically, pressing themselves close to the parent bird's body, and stretching up their beaks and clattering them against the adult's. This would go on for perhaps thirty seconds, when the parent would suddenly – with an expression of relief – regurgitate vigorously, plunging its beak so deeply into the gaping mouths of the youngsters that you felt sure it would never be able to pull its head out again. The babies, satisfied and apparently not stabbed from stem to stern* by the delivery of the first course, would squat down on their plump behinds and meditate for a while, and their parent would seize the opportunity to have a quick wash and brush up, carefully preening its breast-feathers, picking minute* pieces of dirt off its feet, and running its beak along its wings with a clipper-like motion. Then it would yawn, bending forward like someone attempting to touch his toes, wings stretched out straight behind, beak gaping wide. Then it would sink into the trance-like state that its babies had attained some minutes earlier. All would be quiet for five minutes or so, and then suddenly the parent would start its strange hiccupping motions again, and pandemonium* would break out immediately. The babies would rouse themselves from their digestive reverie* and hurl themselves at the adult, each trying its best to get its beak into position first. Once more each of them in turn would he apparently stabbed to the heart by the parent's beak, and then once more they would sink back into somnolence.

The parents and young who occupied this nest-burrow where we filmed the feeding process were known, for convenient reference, as the Joneses. Quite close to the Joneses' establishment was another burrow that contained a single small and very undernourished-looking chick whom we called Henrietta Vacanttum.* Henrietta was the product of an unhappy home-life.* Her parents were, I suspected, either dim-witted or just plain idle, for they took twice as long as any other penguins to produce food for Henrietta, and then only in such minute quantities that she was always hungry. An indication of her parents' habits was the slovenly nest-burrow, a mere half-hearted scrape, scarcely deep enough to protect Henrietta from any inclement weather, totally unlike the deep, carefully dug villa-residence of the Jones family. So it was not surprising that Henrietta had a big-eyed, half-starved, ill-cared-for look about her that made us feel very sorry for her. She was always on the look-out for food, and as the Jones parents had to pass her front door on their way to their own neat burrow, she always made valiant attempts to get them to regurgitate before they reached home.

These efforts were generally in vain, and all Henrietta got for her pains was a severe pecking that made her fluff come out in great clouds. She would retreat, disgruntled, and with anguished eye watch the two disgustedly fat Jones babies wolfing down their food. But one day, by accident, Henrietta discovered a way to pinch the Jones family's food without any unpleasant repercussions. She would wait until the parent Jones had started the hiccupping movements as a preliminary to regurgitation, and the baby Joneses were frantically gyrating round, flapping their wings and wheezing, and then, at the crucial moment, she would join the group, carefully approaching the parent bird from behind. Then, wheezing loudly, and opening her beak wide, she would thrust her head either over the adult's shoulder, as it were, or under her wing, but still carefully maintaining her position behind the parent so that she should not be recognised. The parent Jones, being harried by its gaping-mouthed brood, its mind fully occupied withthe task of regurgitating a pint of shrimps, did not seem to notice the introduction of a third bird into the general melee* that was going on around it.

And when the final moment came it would plunge its head into the first gaping beak that was presented, with the slightly desperate air of an aeroplane passenger seizing his little brown paper bag at the onset of the fiftieth air-pocket.* Only when the last spasm had died away, and the parent Jones could concentrate on external matters, would it realise that it had been feeding a strange offspring, and then Henrietta had to be pretty nifty* on her great, flat feet to escape the wrath. But even if she did not move quickly enough, and received a beating up for her iniquity, the smug look on her face seemed to argue that it was worth it.