while from twenty feet upwards to the tops of the trees there was a perpetual tumult of crowding and fluttering multitudes of Pigeons, their wings resounding like thunder, and mingled with the frequent crash of falling trees. In one instance he counted ninety nests in a single tree." It is only natural that man took advantage of such vast multitudes, and that they were killed in great numbers, for food, and, maybe, sometimes wantonly destroyed. Yet it is difficult to understand what brought on their total destruction, as their power of flight was great, and their vision remarkably keen. In 1874 Messrs. Baird, Brewer and Ridgway considered them still common birds, though "their abundance in large extents of the country had {169} been very sensibly reduced." At that time "in the New England States and in the more cultivated part of the country, these birds no longer bred in large communities. The instance near Montpelier, in 1849, is the only marked exception that has come within my knowledge. They now breed in isolated pairs, their nests being scattered through the woods and seldom near one another." In 1895, in the A.O.U. check-list, the authors say: "Breeding range now mainly restricted to portions of the Canadas and the northern borders of the United States, as far west as Manitoba and the Dakotas." At the present time the Passenger Pigeon seems to have entirely disappeared, a small flock in an aviary apparently being all that is left of it alive. Mr. James H. Fleming, of Toronto, kindly sends me the following notes, which I think are of the greatest interest:--