The homing bees move much more sedately. They come sailing in like bronze argosies laden to the water’s edge. Those bearing full sacs of clover-juice for the honey-making seldom carry an outside load of pollen as well. They have all to do in bringing their distended bodies to a safe anchorage on the entrance-board, and charge headlong into the hive, possessed of only one idea—to hand their garnered sweets over to the first house-bee they chance upon, and then to hurry out in search of another load. The pollen-bearers are impelled by the same white-hot energy; but their cargoes are infinitely more cumbersome, and demand a more leisurely pace. Some with panniers, heaped up with a deep orange-coloured material, must rest awhile on the threshold before gathering energy enough to drag their glowing burdens through the city gate. Others just fail to make the harbour, and sink down on to the grass below, to wait for the same freshet of strength that is finally to bring them into the security of the populous haven. Scores of them do not try for harbour at first tack, but, coming safely into the calm waters of the garden, rest awhile on the nearest leaf or blossom, panting and tremulous, until they are able to wear sail for the last reach home.
There is infinite diversity in the loads of these pollen-carrying bees. Hardly a colour, or shade of colour, in the rainbow fails to pass during every moment across the thronging way. Every bee carries a half-globe of this substance, beautifully rounded and shaped, on each of her two hind-legs. It is possible, by marking the colour of her burden, to tell with certainty what flower she has been plundering on each of her trips. This bright orange, which makes always the largest and heaviest bales in the stream of merchandise, is from the dandelions. From the gorse-flowers come loads of deep rich brown almost as weighty. The charlock, that mingles its useless, wanton beauty with every farm-crop, yields the bee interminable gold. White clover, red clover, sainfoin, all load up the little hive coolies with different shades of russet. From the apple-orchards come bursting panniers of pale yellow; the blackberry-blossom yields pollen of a delicate greenish-white. When summer comes, and the poppies make scarlet undertones amidst the wheat and barley, these winged merchant-women stream homeward with their pollen-baskets laden with funereal black.
But, if you watch a hive at work on any bright spring or summer morning, you will see single bees occasionally pass with loads whose source has never yet been fathomed. The lean, glistening, rufous stuff that is continually borne through the hustling crowd is resin gathered from poplar or pine, and used to glue the straw hive down to its base-board, or to stop up draughty crevices and useless corners, or, diluted into varnish, to paint the honeycombs with an acid-proof, preservative film. But now and then comes a bee with a load whose colour shines up like a danger-signal in darkness. Brilliant scarlet, or soft rose-crimson, or pale lavender, or gleaming white—who shall say in what far, forgotten nook of the country-side she has been adventuring, or what rare blossom she has chanced upon in the wilderness, and, despoiling it of its maiden treasure greedily, has quickened into duplication the beauty that was its reason for life?
Yet the greatest wonder about all this pollen-gathering is that each separate load has been taken entirely from one species of flower. The little half-spheres are packed into the pollen-cells indiscriminately, orange on brown, pale yellow mingled with green, or buff, or grey. But each pair of panniers, representing a single journey, contains the pollen-dust of one kind of blossom alone. Going out into an English lane or meadow to watch the bees at work, the first conviction borne in upon an observer is that the bees are darting about from flower to flower without other thought than to load up from any and every capable blossom that stands in their way. But closer scrutiny reveals a curious plan and order in this, as in everything else that the honey-bee undertakes. Tracing an individual bee in her progress along the flowery verge of the lane, you will soon see that she visits only one species of blossom. If she starts on hawthorn, it will be hawthorn all the way. If her load of willowherb-nectar or pollen is not yet a full one, she will overpass a score of tansy-knots or waving jungles of meadow-sweet, just as inviting and resourceful, apparently, to reach the one scanty patch of purple at the end of the lane.
Why she should be at such pains to keep the pollen separate as she gathers it, only to get it inextricably mingled with every other kind in the storehouse at home, is a problem that none but a bee can solve. But all the honey-bee’s reasons and motives in life are made up of a curious blend of cold-drawn sense and sentiment; and it may be inferred that need and fancy have an equal influence in guiding her in this, as in everything else she does, from her cradle-cell to her grave. Not altogether without seriousness, it may be hazarded that quite as probable a reason for her way of pollen-gathering is that she deems a certain shade of colour makes a more becoming flying-robe, as that she keeps each load of pollen pure, unblended, because of some imperious, economic need of the hive. The factor of sex, in all observation of the ways of the honey-bee, is no more to be considered a negligible one than it is in the critical contemplation of the human species of hive.
All this incessant coming and going of the busy foragers is alluring enough to the looker-on, but there is evidence of many other activities equally interesting. The work of collecting nectar and pollen is obviously only a part of the duties of this self-immolated spinster-race. Here and there in the seething, hurrying crowd there are bees who do not move with the rest, but, anchored securely in the full force of the living current, with heads lowered and turned towards the hive, are engaged in fanning their wings, and this so swiftly that nothing of the wing but a little grey mist can be seen. Looking more carefully, you will make out that these bees are arranged in nearly regular rows, one behind the other, in open order, so that the conflicting tides of foragers can pass uninterruptedly between. If the watcher is bold enough to bring his ear down to the level of the hive, he will make out a steady hissing noise that rings clear above all the din and turmoil made by the incessant travellers to and fro. These rows of fanners are seen to stretch from the hive-door right to the edge of the footplate, but principally on one side; and still closer observation will reveal the fact that there is a regular system of relief among them. Though the general volume of sound never abates one jot, every few minutes one or another of these stationary bees moves away, her place being immediately taken by another, who settles down to the common task in line with the rest. The reason for all this is plain enough: the fanners are engaged in ventilating the hive, drawing a current of vitiated air through the entrance on one side, which flanks, but does not oppose, a corresponding current of pure air sucked in on the other.
All through the warm days of spring and summer this fanning squadron is constantly at work; nor does it cease with the darkness. Chill nights find the ranks weakened and reduced to perhaps only a few bees, or even to none at all when a cold snap of weather intervenes. But in the dog-days, or, as the ancients used to say, when Sirius, the honey-star, is shining, the deep sibilant note of these fanners rises, in a populous apiary, almost to the voice-strength of a gale of wind. To come out then under the stars of a summer night, and stand listening in the tense, fragrant darkness to this mighty note, is to get an impression of bee-life unattainable at any other season. In the daytime the sound is intermingled, overwhelmed, by the chorus of the flying bees. But now all are safely at home. Each hive is packed from floor to roof with tens of thousands of breathing, heat-producing creatures: the necessity for ventilation is quadrupled, and, far and wide in the bee-garden, the fanning armies are setting to their work with a will.
The freshman at this fascinating branch of nature-study, brought out into the quiet night to hear such gargantuan music, is always strangely affected by it, some natures incredibly so. In all the great placid void of darkened hill and dale around him, in the whole blue arch overhead, alive with the flinching silver of the stars, there is no sound but a chance trill of a nightingale, the bark of a shepherd’s dog on the distant upland, or, now and then, the droning song of a beetle passing invisibly by. All the world seems at rest, save these mysterious people in the hives; and with them the sound of labour is only redoubled. Bending down to the nearest hive in the darkness, the note comes up to one like the angry roar of the sea. A light brought cautiously to bear upon it, discloses the alighting-board covered with rows of bees, working, as it were, for their lives; while other bees continually wander in and out of the entrance—the sentries that guard it night and day, just as soldiers guarded the gates of human cities in olden times. The novice at bee-craft, even the most staid and matter-of-fact, is invariably plunged into marvelling silence at the sight. But if the night be exceptionally hot and oppressive, and the fanning army unusually large, the bee-master with an eye for dramatic effect generally finishes the tiro’s wonderment by showing him an old trick. He lowers the candle until the flame is just behind the squadron of ventilating bees, and at once all is darkness: the current of air drawn out of the hive has proved strong enough to extinguish the light.
It has been said that there are guard-bees who watch the hive-door day and night. To the unskilled human eye one bee looks very like another, and it is difficult to understand how, in the many thousands that pass, the guards manage to detect an intruder so unerringly, and to eject her with such unceremonious promptitude as is always shown. Probably it is not by sight alone that these occasional interlopers are singled out. The sense of smell in the honey-bee is extraordinarily acute, and this, no doubt, assists the guards in their difficult work. It is well known that a queen-bee must possess a very distinct odour, as her mere presence abroad, even when shut up in a box, will attract the drones from all quarters. In all likelihood the peculiar aroma from each queen-bee impregnates the whole colony, and thus the guard-bees are able at once to distinguish their own kin from that of alien stocks.