. Propagation of wild birds; a manual of applied ornithology, treating of practical methods of propagation of quails, grouse, wild turkey, pheasants, partridges, pigeons and doves, and waterfowl, in America, and of attracting and increasing wild birds in general, including song-birds . more,in several other species of quails, and also that other gal-linaceous species, such as the ruffed grouse and prairiechicken, were subject to a trouble similar and perhaps identi-cal, it was clear that the theory was disproved. The fact,however, that the disease is communicable indicates, ac-cording to moder
. Propagation of wild birds; a manual of applied ornithology, treating of practical methods of propagation of quails, grouse, wild turkey, pheasants, partridges, pigeons and doves, and waterfowl, in America, and of attracting and increasing wild birds in general, including song-birds . more,in several other species of quails, and also that other gal-linaceous species, such as the ruffed grouse and prairiechicken, were subject to a trouble similar and perhaps identi-cal, it was clear that the theory was disproved. The fact,however, that the disease is communicable indicates, ac-cording to modern scientific conclusions, that there must besome sort of organism as the first cause, which seems to befound everywhere. As far as is known at present, it is adisease of captivity, under artificial conditions and feed-ing. Second Causes. Extended observation convinces me—and this opinion is endorsed by such practical men as Evans,Rogers, and Home—that the disease is liable to break outanywhere under wrong handling or feeding of wild galli-naceous birds in confinement. The practical problem, then,is one of prevention, of so handling and feeding these speciesunder artificial conditions that the system remains in a con-dition of vigour to resist invasion. We ourselves are said.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectgam
