characterises most species of minivet. His tail feathers are all red, save the two median ones, which are black. During flight the brilliant red seems almost to obliterate the black, so that a number of cocks, as they fly from one tree to another, look like sparks driven before the wind. The hen is marked in the same way as the cock, but in her the flaming red colour is replaced by bright yellow. In my opinion, “orange” is not a very suitable adjective to apply to this species. A literal translation of the Latin name—the flame-coloured minivet—would be more appropriate.

A minivet’s nest is a work of art. As all the species construct precisely the same kind of nursery, what is true of any one species applies equally to all the others. The nest is a neat little cup, about three inches in diameter, composed of twigs and grasses, and covered outside with moss and cobwebs, so that in colour and general appearance the exterior is exactly like the bark of a tree. It is usually placed on a bough; if this happens to be a thick one, the nest is totally invisible to any person looking up into the tree. If the branch happens to be a thin one, the nursery, seen from below, looks exactly like a knot or swelling in the branch. Thus, unless one actually sees the minivet sitting on the nest, or climbs the tree, it is scarcely possible to locate the little nursery. It is easy enough to discover that a pair have a nest, for the parent birds make a great noise when a human being comes anywhere near. If they happen to be carrying food in the beak for the young birds, they at once drop it, set up their cry of distress and try to entice the stranger away by flying a little distance off. If this ruse[2] be not successful, the hen minivet will act as if her wing were broken and flap along away from the nest.

It is an interesting fact that although minivets build open nests and the sexes differ so considerably in appearance, both the cock and the hen take part in incubation.

Some years ago, when writing of the small minivet, I quoted Mr. William Jesse as describing a very curious phenomenon in connection with the nesting of this species, namely that in his experience almost invariably two hens and one cock take part in nest building and incubation. “What is the exact duty of this second wife,” writes Jesse, “I cannot make out. Possibly she may be a drudge. That she exists I have satisfied myself time after time, and so convinced are the Martiniere boys of the fact that they—no mean observers by the way—rarely trouble to look for a nest if only one female is present. Unfortunately, I have never yet found out what happens when there are young. Whether both females take part in incubation and in rearing the young I do not know. I do not think that both lay eggs, as I have never found more than three.” From the time when I first read the above passage I have paid particular attention to minivets, with the object of trying to account for the alleged phenomenon, and the result of my efforts is that I have never seen more than one cock and one hen at a nest, whether it be under construction or whether it contain eggs or young. Moreover, I have not come across any naturalist other than Mr. Jesse who has seen more than two birds at the nest. I am therefore driven to the conclusion that minivets are monogamous birds and that the observation recorded by Mr. Jesse is faulty, that the presence of the second female was due to the chance visit of an outsider. Possibly, since there seem to be more hen minivets than cocks, there is considerable competition among the hens for cocks, and it may happen that the hen who has set her cap at a cock in vain may stay on in the vicinity for some time after her rejection.

V
THE POWER OF ANIMALS TO EXPRESS THOUGHT

The thoughts of birds and beasts are probably few and simple. Yet it is unlikely that they are able to communicate all their thoughts to one another, because the language they possess consists of a few monosyllables, by which they can express only elementary feelings such as pain, anger, fear, hunger, and the presence of food.

Some animals possess a much larger vocabulary than others. Dr. Garner, who went to Africa to study the language of his Simian brothers, found that the average monkey was able to emit only about seven cries, but the vocabulary of the highly intelligent chimpanzee comprised twenty-two separate calls.

According to Mr. Edmund Selous, the rook is really in process of evolving a language. He records no fewer than thirty-three distinct sounds he heard rooks utter, and states that this is but a small page out of their vocabulary. Nevertheless, he is compelled to admit that only in few cases was he able to connect a note with any particular state of mind.

The articulate language of animals is a language of monosyllables, a language composed almost entirely of interjections. Such a language, while very expressive as far as it goes, does not go very far. And the question naturally arises, does it go sufficiently far to meet the needs of the various species, or have they some means of communicating with one another other than by sounds? It is very tempting to believe that they have, that they are able to transmit thought to one another in some way. It is only on the assumption of brain waves that one can explain the soldier-like evolutions which flocks of birds sometimes perform in the air.

I have often wondered how those species of birds, of which both the cock and hen take part in the nest-building operations, select the site. The matter is, of course, simple when only the one sex constructs the nest. But how is the site selected when both sexes build? It is tempting to believe that they discuss the matter, that the hen says to the cock, “Now, James, my dear, it is necessary for us to build a nest without delay: come, let us select a secluded spot wherein to build”; and to picture the little birds hunting about together and criticising the sites each selects. Nevertheless, I think it most unlikely that any such discussion takes place. Nest building is largely instinctive. In the case of the first nest it is improbable that the little builders quite know what they are doing, and I do not see how, before the nest is begun, they can have any idea of what it will look like when it is finished.

It is possible that birds agree as to the site without any discussion or without any communication. Let us suppose that a pair of bulbuls have mated. Suddenly one of them is overmastered by the nest-building instinct which has hitherto lain dormant. This particular bird is impelled by some irresistible force to seek out a site and then forthwith to begin to build the nest. The nest-building instinct of its mate, which is dormant, is at once awakened by the sight of its spouse collecting material. When this happens the second bird begins collecting, and is content to work at the structure already commenced by its mate. Assuming the