If possible, more ruthless and inhuman was the carnage waged against the noble buffalo, the countless thousands of which roaming over virgin prairies excited the wonder and amazement of the entire sporting and scientific world, and which, to-day, are represented only in the zoölogical parks, where all individuality will eventually be lost in domestication. Coincident almost with the passing of the buffalo we have to record the decline and fall of the Passenger Pigeon, a bird which aroused the excitement and wonder of the entire world during the first half of the last century because of its phenomenal numbers; a bird also which stood out unique in character and individuality among the 300 described pigeons of the world and which won the admiration of every ornithologist who was fortunate enough to have experience with it living or dead. Yet it was not exempt from the oppression of its human foe, who has been instrumental, through interference with the breeding and feeding grounds and through a continued persecution and ruthless slaughter for the market, in reducing the species almost beyond the hope of salvation. The Passenger Pigeon, the species under observation, was first described under the genus _Columba_, or type pigeons, but subsequently Swainson separated it from these and placed it under the genus _Ectopistes_ because of the greater length of wing and tail. Generically named _Ectopistes_, meaning moving about or wandering, and specifically named _Migratoria_, meaning migratory, we have a technical name implying not only a species of migrating annually to and from their breeding ground, but one given to moving about from season to season, selecting the most congenial environment for both breeding and feeding.