CHAPTER XIX.
THE SHRIKE AND THE HUMMING-BIRDS
The picturesque scenery of the Elk appeared to be a favourite resortwith the feathered creation. Here our voyageurs saw many kinds of birds;both those that migrate into the fur countries during summer, and thosethat make their home there in the cold, dark days of winter. Among theformer were observed--the beautiful blue bird of Wilson which, onaccount of its gentle and innocent habits, is quite as much esteemed inAmerica as the "robin" in England.
Another favourite of the farmer and the homestead, the purple martin,was seen gracefully wheeling through the air; while, among the greenleaves, fluttered many brilliant birds. The "cardinal grosbeak" with hisbright scarlet wings; the blue jay, noisy and chattering; the rarer"crossbill" with its deep crimson colour; and many others, equallybright and beautiful, enlivened the woods, either with their voice ortheir gaudy plumage.
While seated near these, Francois' quick eye detected the presence ofsome very small birds moving among the blossoms. They were at oncepronounced to be humming-birds, and of that species known as the"ruby-throats" so called, because a flake of a beautiful vinous colourunder the throat of the males exhibits, in the sun, all the glancingglories of the ruby. The back, or upper parts, are of a gilded greencolour; and the little creature is the smallest bird that migrates intothe fur countries, with one exception, and that is a bird of the samegenus--the "cinnamon humming-bird." The latter, however, has been seenin the Northern regions, only on the western side of the RockyMountains; but then it has been observed even as far north as the bleakand inhospitable shores of Nootka Sound. Mexico, and the tropicalcountries of America, are the favourite home of the humming-birds; andit was, for a long time, supposed that the "ruby-throats" were the onlyones that migrated farther north than the territory of Mexico itself. Itis now known, that besides the "cinnamon humming-bird," two or threeother species annually make an excursion into higher latitudes.
The "ruby-throats" not only travel into the fur countries, but breed innumbers upon the Elk River, the very place where our travellers nowobserved them.
As they sat watching these little creatures, for there were several ofthem skipping about and poising themselves opposite the flowers, theattention of all was attracted to the movements of a far different sortof bird. It was that one we have been speaking of. It was seated upon atree, not far from the honeysuckles; but every now and then it wouldspring from its perch, dash forward, and after whirring about for somemoments among the humming-birds fly back to the same tree.
This excited the indignation of Francois, who immediately took up his"double-barrel," and proceeded towards the tree where the bird, asbefore, had carried this last victim. The tree was a low one, of thelocust or _pseud-acacia_ family, and covered all over with great thornyspikes, like all trees of that tribe. Francois paid no attention tothis; but, keeping under shelter of the underwood, he crept forwarduntil within shot. Then raising his gun, he took aim, and pullingtrigger, brought the bird fluttering down through the branches. Hestepped forward and picked it up--not that he cared for such unworthygame, but Lucien had called to him to do so, as the naturalist wished tomake an examination of the creature.
He was about turning to go back to camp, when he chanced to glance hiseye up into the locust-tree. There it was riveted by a sight whichcaused him to cry out with astonishment. His cry brought the restrunning up to the spot, and they were not less astonished than he, whenthey saw the cause of it. I have said that the branches of the tree werecovered with long thorny spikes that pointed in every direction; but onebranch in particular occupied their attention. Upon this there was abouta dozen of these spikes pointing upward, and upon each spike _wasimpaled a ruby-throat_!
The little creatures were dead, of course, but they were neither tornnor even much ruffled in their plumage. They were all placed backupwards, and as neatly spitted upon the thorns as if they had been putthere by human hands. On looking more closely it was discovered thatother creatures as well as the humming-birds, had been served in asimilar manner. Several grasshoppers, spiders, and some coleopterousinsects were found, and upon another branch two small meadow-mice hadbeen treated to the same terrible death.
The most probable explanation of the singular and apparently cruel habitof the butcher-bird is, that it merely places its victims upon thethorns, in order to keep them safe from ground-ants, rats, mice,raccoons, foxes, and other preying creatures--just as a good cook wouldhang up her meat or game in the larder to prevent the cats from carryingit off. The thorny tree thus becomes the storehouse of the shrike, wherehe hangs up his superfluous spoil for future use, just as the crows,magpies and jays, make their secret deposits in chinks of walls and thehollows of trees. It is no argument against this theory, that theshrike sometimes leaves these stores without returning to them. The fox,and dog, as well as many other preying creatures have the same habit.
Wondering at what they had seen, the voyageurs returned to their camp,and once more embarked on their journey.