to proceed, to chop away the network of vegetation that overhung the water. Now and again it ran through open spaces covered with tall and matted grass, and then between banks a dozen feet high; but when we were forced to stop, unable to proceed further, the water was still brackish, although we had almost reached the hills in which it takes its source. The banks were frequented by herons, redshanks and other waders, and kingfishers (both P. leucocephala, with sandy head and body and blue wings, and the tiny bengalensis, the counterpart of our English bird). Several beautiful butterflies were seen, a rather common species, with velvety black wings, blotched with turquoise, constantly flitting up and down the course of the stream.

We obtained good water in the harbour; slightly to the west of the little bay, a rocky hill makes an angle with a little beach of bright sand, and at the point of junction a path leads to the spring a few yards inland, where, in the jungle, the trickling water runs down a face of black rock, and collects in a stony basin. By forming a slight dam at the foot of the rock, any quantity can be collected.

In the rocky hill just mentioned, we discovered several caves, which run inwards from mouths situated at the water's level. These are the homes of thousands of tiny leaf-nosed bats (Hipposideros nicobarula, sp. nov.), and immense numbers of the bird's-nest swift (Collocalia linchii).

The largest of these caves is about 50 feet deep, and 20 feet high at the entrance; but at the back the accumulation of guano is so great that there is barely room to stand. As we entered with a lantern, our feet sinking ankle-deep into the soft chocolatecoloured floor, there was a continual rush of little bats and birds overhead as they sought to escape, and with a leafy branch we knocked over a number of each kind before going to the end.

The rock at the back was covered with countless numbers of the shallow cup-shaped nests of saliva-gummed moss: so closely were they built, that in many cases one could not place a fingertip on the rock between them, and often they were constructed one on the side of the other. Nearly every one contained two

A JUNGLE PATH

127

comparatively large, white eggs, or ugly, unfledged nestlings. Fortunately for the birds, they are builders of the green variety of nest; for had these been white, they would not long have remained undisturbed by the Chinese.

Swifts and bats-the one as graceful as the other is hideouswould seem queer neighbours, although there is a certain affinity between the two, for both enjoy the same food-flies and other insects—and obtain it on the wing without mutual interference; for the first hunt by day, and the others are nocturnal. In the cave, the swallows breed at the inner end, while the bats congregate near the mouth.

Another small cave was inhabited by bats only, and so thickly were they suspended from the walls, that one could kill a dozen at one blow. For long after we left the spot, clouds of swifts whirled about the entrance; but the bats, when disturbed, immediately disappeared in the jungle above.

The only path on Little Nicobar runs across its northern peninsula. It starts near a couple of dilapidated huts opposite Pulo Milo, and, running first through a belt of tangled scrub, crosses the little range of hills near the western coast, and then, traversing a stretch of rich flat soil, covered with splendid open forest, and great numbers of the Nicobar palm (P. augusta), finally comes out on the east coast opposite the small island of Menchál, which lies a mile or so distant, and is only half a square mile in area. It is covered with forest, containing many coco palms and tree ferns, and also clumps of two species of giant bamboo (Bambusa brandisii and Gigantochloa macrostachya). It is of sandstone formation, covered with deep soil or sharply-worn coral. Somewhat farther down the coast is a small village, and the path has been made to connect this with Pulo Milo.

The forest through which the path ran was our favourite collecting ground. We met there for the first time the beautiful little sunbird Aethopyga nicobarica, with crown and tail dark shining blue, throat and breast scarlet, through which ran two moustachial streaks of brilliant blue, the remaining plumage olive

grey, but further ornamented by patches of bright yellow beneath the wing and on the back. This is the male, for the hen bird, as in all sunbirds, is of very inconspicuous plumage. This species is very local in distribution, and does not occur in the northern islands.

Astur soloensis, the forest hawk, was not uncommon, but took pains to obtain, for it was very wary. Before beginning to call, one had to hide in a bush, or behind a tree trunk, and the chances were that when the bird did arrive it would perch behind you, and then, since its swooping flight is perfectly noiseless, one remained in ignorance of its proximity. Then, too, it might rest five yards away or fifty in the former case, if you were not prepared with a suitable cartridge, the bird was lost, for there would be no time to reload; in the latter event, it was better to knock it over straightway than run risks in bringing it closer. Once they become frightened, or see what is making the call, they are off, not to return, "charm you never so wisely."

A parrot-Palæornis caniceps-restricted entirely to the two southern islands of the Nicobars, was very common about here, where its screams and chattering often broke the prevailing silence of the jungle. For such a bird, it was clad in sober colours; for, saving a grey head, across the front of which-like a pair of spectacles-there ran a patch of black feathers, the plumage was of green only. The whole scheme was somewhat relieved in the male by an upper mandible of scarlet.

Monkeys abounded, and on some days we might see as many as fifty or a hundred. They are so numerous that in both Little and Great Nicobar the coco palms, except in the neighbourhood of villages, are altogether unproductive, and this, according to the natives, is because the monkeys screw off every nut the moment it begins to form.*

They, too, are very timid in some ways, but one is able to get at them through their intense curiosity. The attempt to

*It is difficult to believe that this is the true reason of the trees' infertility; but it is a fact that no coco palms, except those about the houses, bear any nuts.