. Gli uccelli di Ontario in relazione all'agricoltura. Aumento di thi-esercito di ratti, topi, ecc., sono gli uccelli di preda. Thesebirds sono adduwed con facul-cries naturali adattati specialmente per il lavoro che fanno e lo fanno bene, l'onlyguaio è che abbiamo troppo pochi di loro.se, tuttavia, l'opinione pubblica può bebraged per sopportare su questa importantmatter prima che sia troppo tardi, e thewanton e distruzione inutile dei nostri falchi benefici e gufi si arrestano subito, l'equilibrio della natura forse ripristinato, a grande vantaggio dell'umanità. Il seguente mostra il risultato di Dr. Fishers investigazione del thefood h.

• Collaboratore: Reading Room 2020
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. The birds of Ontario in relation to agriculture . increase of thi- army of rats, mice, etc., are the birds of prey. Thesebirds are enduwed with natural facul-ties specially adapted for the workthey do, and they do it well, the onlytrouble is that we have too few of them.If, however, public opinion can bebrought to bear on this importantmatter before it is too late, and thewanton and useless destruction ofour beneficial hawks and owls stoppedat once, the balance of nature maybe restored, to the great advantage of mankind. The following shows the result of Dr. Fishers investigation of thefood habits of the owls as reported to the Department of Agricultureat Washington. Great Horned Owl. 127 stomachs examined : 31 containedpoultry or game birds; 8, other birds ; 13, mice ; 65, other mammals ;1, insects, etc.; 1, fish, and 17 were empty. This shows that although the bird does some injury by its raidsupon game and poultry, yet its evil propensities are somewhat coun-terbalanced by its destruction of mice, rats, rabbits and other small2 B.. Screech OwlMegascops asio(Fig. 7.) 18 mammals. It is the only one of the owls about whose record for goodthere can be any doubt. All the others should be protected, while thisone should certainly be killed off, if it takes to visiting the barnyard. Long-eared Oivl. 107 stomachs examined: 1 contained a gamebird ; 15, other birds; 84 contained mice ; 5, other mammals ; 1, insects, and 15 were empty. Short-eared Owl. 101 stomachs examined : 11 contained smallbirds ; 77 contained mice ; 7, other mammals ; 7, insects, and 14 wereempty. My own experience shows a larger proportion of small birdsthan the above. Barred Owl. 109 stomachs examined : 5 contained poultry orgame birds; 13, other birds; 46, mice; 18, other mammals ; 16, frogs, lizards, etc.; 16, insects; etc., and 20 were empty. Screech Owl. 254 stomachs examined : 1 contained the remainsof a pigeon ; 38, other birds ; 91, mice ; 11, other small mammals ; 25, frogs, lizards, etc.; 107,

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• bookcentury1900
• bookdecade1900
• booksubjectbirds
• bookyear1901