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How To Observe Nature
by
Some years ago I was witness to the mode in which a snake pursues its victim. A large frog leaped upon the gravel walk before the windows, crying piteously like a child and taking rapid leaps; a moment after a large snake appeared swiftly pursuing the frog. At last it reached it, and gave it a bite which broke its back, and then, being alarmed, it darted away amongst some rock-work, leaving the frog in a dying state.
This bank we are passing is a favourite winter retreat for female humble bees. Early in the autumn they begin to scoop out a little tunnel in this grassy slope, and when it is deep enough to protect them from the frost they retire into it, and pushing up the earth behind them close up the entrance of the hole, and there lie dormant until the warmth of spring tempts them to come out. Then they may be found in great numbers on the early sallow, and other tree-blossoms, recruiting their strength, while they seek a place in some hedge-bank wherein to found a new colony.
The Carder bee forms its nest on the ground and makes a roof of interwoven moss, from which it takes its name. I once gathered the moss from such a nest by chance and saw the little mass of cells with honey in them. I went away, meaning to examine it more closely on my return, but a crow in the apple-tree overhead chanced to spy the nest and made off with it in his beak before I could rescue the honey store of the poor little bees I had so unwittingly injured.
That old tree-stump is being gradually carried away by wasps. The wood is just sufficiently decayed to afford the material of which they make their nests. You see there are several wasps busily rasping pieces of the rotten wood into convenient-sized morsels, which they can carry to the nest, there to be masticated into the papery layers of which the outer walls of the nest are formed. This walk used to have a row of grand old silver firs of great height, but each winter some of them have been blown down till only a few are left.
Some years since I noticed at the root of one of them a pile of fine sawdust more than a foot high, and found that some wood wasps were busily engaged in excavating the interior of the tree and forming tunnels in which to lay their eggs. I watched them for half an hour and found that every half-minute a wasp went in at the aperture carrying a blue-bottle or some kind of fly in its mandibles. Next day I took a friend to see the wasps, and while watching them the wind caused the immense tree-stem to sway to and fro from its base as if in the act of falling, and on examination we found it was only held in its place by a small portion of root, and though the branches were green, it must have been hollow and dead inside, which appears to be the way in which silver firs decay, and the wasps had found it out and made a delightful home in the rotten wood. With some difficulty the great tree was safely taken down, and then it was a most curious sight to see the endless chambers and galleries made in the stem, all tenanted by young wasp-grubs and half-dead flies; and all the summer they were being hatched in countless numbers. The view over our common is lovely from this point; it is golden with rich yellow gorse, giving cover to innumerable rabbits, which find their way into our garden in spite of wire fences and all that the gardener can do to keep them out. One clever little mother rabbit made her burrow deep down in a heap of sawdust close to the stable. My coachman put his arm down to the bottom of the hole and brought out a little grey furred creature, kicking and screaming with wonderful vigour in spite of its tender years. The nest was allowed to remain, and in a few days the mother removed her brood to a hole at the root of a bushy stone-pine, where the little ones frisked in and out and looked so pretty that I was won over to allow them to stay, and, by netting round the tree, we formed a miniature warren for the young family; but I fear that in course of time we may bitterly repent this step, and the numbers may increase to such an extent that pinks and lobelia may become things of the past and the rabbit warren may have to be abolished.