Amongst the bare roots of the trees, alongside of this part of the river, a red crab sometimes makes its appearance as you are passing up and down. It is preyed upon by a large species of owl which I was fortunate enough to procure. Its head, back, wings and tail are of so dark a brown as almost to appear black. The breast is of a somewhat lighter brown. The belly and thighs are of a dirty yellow-white. The feathers round the eyes are of the same dark brown as the rest of the body; and then comes a circle of white which has much the appearance of the rim of a large pair of spectacles. I strongly suspect that the dirty yellow-white of the belly and thighs has originally been pure white, and that it has come to its present colour by means of the bird darting down upon its prey in the mud. But this is mere conjecture.

Here, too, close to the river, I frequently saw the bird called sun-bird by the English colonists and tirana by the Spaniards in the Oroonoque. It is very elegant, and in its outward appearance approaches near to the heron tribe; still, it does not live upon fish. Flies and insects are its food, and it takes them just as the heron takes fish, by approaching near and then striking with its beak at its prey so quick that it has no chance to escape. The beautiful mixture of grey, yellow, green, black, white and chestnut in the plumage of this bird baffles any attempt to give a description of the distribution of them which would be satisfactory to the reader.

There is something remarkable in the great tinamou which I suspect has hitherto escaped notice. It invariably roosts in trees, but the feet are so very small in proportion to the body of this bulky bird that they can be of no use to it in grasping the branch; and, moreover, the hind-toe is so short that it does not touch the ground when the bird is walking. The back part of the leg, just below the knee, is quite flat and somewhat concave. On it are strong pointed scales, which are very rough, and catch your finger as you move it along from the knee to the toe. Now, by means of these scales and the particular flatness of that part of the leg, the bird is enabled to sleep in safety upon the branch of a tree.

At the close of day the great tinamou gives a loud, monotonous, plaintive whistle, and then immediately springs into the tree. By the light of the full-moon the vigilant and cautious naturalist may see him sitting in the position already described.

The small tinamou has nothing that can be called a tail. It never lays more than one egg, which is of a chocolate colour. It makes no nest, but merely scratches a little hollow in the sand, generally at the foot of a tree.

Here we have an instance of a bird the size of a partridge, and of the same tribe, laying only one egg, while the rest of the family, from the peahen to the quail, are known to lay a considerable number. The foot of this bird is very small in proportion, but the back part of the leg bears no resemblance to that of the larger tinamou; hence one might conclude that it sleeps upon the ground.

Independent of the hollow trees, the vampires have another hiding-place. They clear out the inside of the large ants' nests and then take possession of the shell. I had gone about half a day down the river to a part of the forest where the wallaba-trees were in great plenty. The seeds had ripened, and I was in hopes to have got the large scarlet ara, which feeds on them. But unfortunately the time had passed away, and the seeds had fallen.

While ranging here in the forest we stopped under an ants' nest, and, by the dirt below, conjectured that it had got new tenants. Thinking it no harm to dislodge them, "vi et armis," an Indian boy ascended the tree, but before he reached the nest out flew above a dozen vampires.

I have formerly remarked that I wished to have it in my power to say that I had been sucked by the vampire. I gave them many an opportunity, but they always fought shy; and though they now sucked a young man of the Indian breed very severely, as he was sleeping in his hammock in the shed next to mine, they would have nothing to do with me. His great toe seemed to have all the attractions. I examined it minutely as he was bathing it in the river at daybreak. The midnight surgeon had made a hole in it almost of a triangular shape, and the blood was then running from it apace. His hammock was so defiled and stained with clotted blood that he was obliged to beg an old black woman to wash it. As she was taking it down to the river-side she spread it out before me, and shook her head. I remarked that I supposed her own toe was too old and tough to invite the vampire-doctor to get his supper out of it, and she answered, with a grin, that doctors generally preferred young people.

Nobody has yet been able to inform me how it is that the vampire manages to draw such a large quantity of blood, generally from the toe, and the patient all the time remains in a profound sleep. I have never heard of an instance of a man waking under the operation. On the contrary, he continues in a sound sleep, and at the time of rising his eyes first inform him that there has been a thirsty thief on his toe.