...Perhaps the most gigantic task ever undertaken on this continent in theline of game-slaughter was the extermination of the bison in the greatpasture region by the hide-hunters... 
William T. Hornaday 「The Extermination of the American Bison」
...The Canadian Pacific Railway played no part whatever inthe extermination of the bison in the British Possessions, for it hadalready taken place...
William T. Hornaday 「The Extermination of the American Bison」
...Let it be remembered, therefore, that the American Indian is as muchresponsible for the extermination of our northern herd of bison as theAmerican citizen...
William T. Hornaday 「The Extermination of the American Bison」
...Many birds are becoming extinct, and certain mammals are onthe verge of extermination...
William T. Hornaday 「Our Vanishing Wild Life」
...
Extermination in a wild state means that the only livingrepresentatives are in captivity or otherwise under protection...
William T. Hornaday 「Our Vanishing Wild Life」
...The extermination ofwild species that now is proceeding throughout the world, is adreadful thing...
William T. Hornaday 「Our Vanishing Wild Life」
...
—The gray squirrel is in danger of extermination...
William T. Hornaday 「Our Vanishing Wild Life」
...Just why that species has not already beenexterminated, is a zoological mystery; but extermination surely willcome some day, and I think it will be in the near future...
William T. Hornaday 「Our Vanishing Wild Life」
...To the birds of the world this list is of deadlyimport, for it spells extermination...
William T. Hornaday 「Our Vanishing Wild Life」
...Unless we come to an "About, face!" in quick time, all our big gameoutside the preserves is doomed to sure and quick extermination...
William T. Hornaday 「Our Vanishing Wild Life」
...In spite of heavy slaughter, andvigorous attempts at extermination by over-shooting, the deer ofnorthern Michigan obstinately refuse to be wiped out...
William T. Hornaday 「Our Vanishing Wild Life」
...The caribou thousands of Newfoundland are fairly accessible tosportsmen and pot-hunters, but at the same time the colonialgovernment can protect them from extermination if it will...
William T. Hornaday 「Our Vanishing Wild Life」
...Certainly, there is not one-tenthenough real damage done by bears to justify their extermination...
William T. Hornaday 「Our Vanishing Wild Life」
...Their limited powers of reproduction, coupled withthe natural vicissitudes of the breeding period, make their increaseslow, and peculiarly expose them to danger of extermination...
William T. Hornaday 「Our Vanishing Wild Life」
... and the extermination of the egrets bylawless and dangerous men...
William T. Hornaday 「Our Vanishing Wild Life」
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