The pigeons too were filling the woods in vast migratory flocks. It is almost incredible to describe the prodigious flights of these birds in the western wildernesses. They appear absolutely in clouds, and move with astonishing velocity, their wings making a whistling sound as they fly. The rapid evolutions of these flocks, wheeling and shifting suddenly as if with one mind and one impulse; the flashing changes of color they present, as their backs, their breasts, or the under part of their wings are turned to the spectator, are singularly pleasing. When they alight, if on the ground, they cover whole acres at a time; if upon trees, the branches often break beneath their weight. If suddenly startled while feeding in the midst of a forest, the noise they make in getting on the wing is like the roar of a cataract or the sound of distant thunder.
A flight of this kind, like an Egyptian flight of locusts, devours everything that serves for its food as it passes along. So great were the numbers in the vicinity of the camp that Mr. Bradbury, in the course of a morning's excursion, shot nearly three hundred with a fowling-piece. He gives a curious, though apparently a faithful, account of the kind of discipline observed in these immense flocks, so that each may have a chance of picking up food. As the front ranks must meet with the greatest abundance, and the rear ranks must have scanty pickings, the instant a rank finds itself the hindmost, it rises in the air, flies over the whole flock, and takes its place in the advance. The next rank follows in its course, and thus the last is continually becoming first, and all by turns have a front place at the banquet.
The rains having at length subsided, Mr. Hunt broke up the encampment and resumed his course up the Missouri.
The party now consisted of nearly sixty persons: of whom five were partners; one, John Reed, was a clerk; forty were Canadian "voyageurs," or "engagés." and there were several hunters. They embarked in four boats, one of which was of a large size, mounting a swivel and two howitzers. All were furnished with masts and sails, to be used when the wind was sufficiently favorable and strong to overpower the current of the river. Such was the case for the first four or five days, when they were wafted steadily up the stream by a strong southeaster.
Their encampments at night were often pleasant and picturesque: on some beautiful bank beneath spreading trees, which afforded them shelter and fuel. The tents were pitched, the
