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same may be said of woodpeckers, cuckoos, warblers, and, in fact, of any species that subsists in a state of nature on a particular kind of animal food. Still, when we find that even the excessively volatile humming-bird, which subsists on the minutest insects and the nectar of flowers, and seems to require unlimited space for the exercise of its energies, can be successfully kept confined for long periods and conveyed to distant countries, one would imagine that it would be hard to set a limit to what might be done in this direction. We do not want hard-billed birds only. We require, in the first place, variety; and, secondly, that every species introduced, when not of type unlike any native kind, as in the case of the pheasant, shall be superior in beauty, melody, or some other quality, to its British representative, or to the species which comes nearest to it in structure and habits. Thus, suppose that the introduction of a pigeon should be desired. We know that in all temperate regions, these birds vary as little in colour and markings as they do in form; but in the vocal powers of different species there is great diversity; and the main objects would therefore be to secure a bird which
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would be an improvement in this respect on the native kinds. There are doves belonging to the same genus as stock-dove and wood-pigeon, that have exceedingly good voices, in which the peculiar mournful dove-melody has reached its highest perfection--weird and passionate strains, surging and ebbing, and startling the hearer with their mysterious resemblance to human tones. Or a Zenaida might be preferred for its tender lament, so wild and exquisitely modulated, like sobs etherealized and set to music, and passing away in sigh-like sounds that seem to mimic the aerial voices of the wind.
When considering the character of our bird population with a view to its improvement, one cannot but think much, and with a feeling almost of dismay, of the excessive abundance of the sparrow. A systematic persecution of this bird would probably only serve to make matters worse, since its continued increase is not the cause but an effect of a corresponding decrease in other more useful and attractive species; and if Nature is to have her way at all there must be birds; and besides, no bird-lover has any wish at see such a thing attempted. The sparrow has
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his good points, if we are to judge him as we find him, without allowing what the Australians and Americans say of him to prejudice our minds. Possibly in those distant countries he may be altogether bad, resembling, in this respect, some of the emigrants of our species, who, when they go abroad, leave their whole stock of morality at home. Even with us Miss Ormerod is exceedingly bitter against him, and desires nothing less than his complete extirpation; but it is possible that this lady's zeal may not be according to knowledge, that she may not know a sparrow quite so well as she knows a fly. At all events, the ornithologist finds it hard to believe that so bad an insect-catcher is really causing the extinction of any exclusively insectivorous species. On her own very high authority we know that the insect supply is not diminishing, that the injurious kinds alone are able to inflict an annual loss equal to £10,000,000 on the British farmer. To put aside this controversial matter, the sparrow with all his faults is a pleasant merry little fellow; in many towns he is the sole representative of wild bird life, and is therefore a great deal to us--especially in the metropolis, in which he most