We remounted sadly and rode on. The surface of the ground was rather soft, scattered with round rocks the size of a man's head, and full of pig holes.

“Cheerful country to ride over at speed,” remarked Billy. Later in the day we had occasion to remember that statement.

The plains led us ever on. First would be a band of scattered brush growing singly and in small clumps: then a little open prairie; then a narrow, long grass swale; then perhaps a low, long hill with small single trees and rough, volcanic footing. Ten thousand things kept us interested. Game was everywhere, feeding singly, in groups, in herds, game of all sizes and descriptions. The rounded ears of jackals pointed at us from the grass. Hundreds of birds balanced or fluttered about us, birds of all sizes from the big ground hornbill to the littlest hummers and sun birds. Overhead, across the wonderful variegated sky of Africa the broad-winged carrion hunters and birds of prey wheeled. In all our stay on the Isiola we had not seen a single rhino track, so we rode quite care free and happy.

Finally, across a glade, not over a hundred and fifty yards away, we saw a solitary bull oryx standing under a bush. B. wanted an oryx. We discussed this one idly. He looked to be a decent oryx, but nothing especial. However, he offered a very good shot; so B., after some hesitation, decided to take it. It proved to be by far the best specimen we shot, the horns measuring thirty-six and three fourths inches! Almost immediately after, two of the rather rare striped hyenas leaped from the grass and departed rapidly over the top of a hill. We opened fire, and F. dropped one of them. By the time these trophies were prepared, the sun had mounted high in the heavens, and it was getting hot.

Accordingly we abandoned that still distant river and swung away in a wide circle to return to camp.

Several minor adventures brought us to high noon and the heat of the day. B. had succeeded in drawing a prize, one of the Grevy's or mountain zebra. He and the gunbearers engaged themselves with that, while we sat under the rather scanty shade of a small thorn tree and had lunch. Here we had a favourable chance to observe that very common, but always wonderful phenomenon, the gathering of the carrion birds. Within five minutes after the stoop of the first vulture above the carcass, the sky immediately over that one spot was fairly darkened with them. They were as thick as midges-or as ducks used to be in California. All sizes were there from the little carrion crows to the great dignified vultures and marabouts and eagles. The small fry flopped and scolded, and rose and fell in a dense mass; the marabouts walked with dignified pace to and fro through the grass all about. As far as the eye could penetrate the blue, it could make out more and yet more of the great soarers stooping with half bent wings. Below we could see uncertainly through the shimmer of the mirage the bent forms of the men.

We ate and waited; and after a little we dozed. I was awakened suddenly by a tremendous rushing roar, like the sound of a not too distant waterfall. The group of men were plodding toward us carrying burdens. And like plummets the birds were dropping straight down from the heavens, spreading wide their wings at the last moment to check their speed. This made the roaring sound that had awakened me.

A wide spot in the shimmer showed black and struggling against the ground. I arose and walked over, meeting halfway B. and the men carrying the meat. It took me probably about two minutes to reach the place where the zebra had been killed. Hundreds, perhaps thousands, of the great birds were standing idly about; a dozen or so were flapping and scrambling in the centre. I stepped into view. With a mighty commotion they all took wing clumsily, awkwardly, reluctantly. A trampled, bloody space and the larger bones, picked absolutely clean, was all that remained! In less than two minutes the job had been done!

“You're certainly good workmen!” I exclaimed, “but I wonder how you all make a living!”

We started the men on to camp with the meat, and ourselves rested under the shade. The day had been a full and interesting one; but we considered it as finished. Remained only the hot journey back to camp.