 The Sparrow Hawk is almost exclusively insectivorous except when insect food is difficult to obtain. In localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously....  The Diseases and enemies of poultry - Sivu 221tekijä(t) Pennsylvania. Dept. of Agriculture - 1897Koko teos - Tietoja tästä kirjasta
 | U.S. department of agriculture Commissioner's OFfice - 1889 - 842 sivua
...localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | United States. Department of Agriculture - 1889 - 858 sivua
...localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and otner forms of life contribute... | |
 | 1889 - 860 sivua
...localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | United States. Department of Agriculture - 1889 - 852 sivua
...where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized Hocks, and gorge themselves continuously. Rarely do they...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | Albert Kenrick Fisher - 1893 - 324 sivua
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Barely do they touch any other form of food until, either...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | 1893 - 320 sivua
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Barely do they touch any other form of food until, either...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | 1895 - 656 sivua
...localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...until, either by the advancing season or other natural muses, the grasshopper crop is so lessened that their hunger can not be appeased without undue exertion.... | |
 | 1898 - 262 sivua
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Earely do they touch any other form of food until, either...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | Theodore Sherman Palmer - 1900 - 108 sivua
...localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | Mabel Osgood Wright - 1907 - 566 sivua
...localities where grasshoppers and crickets are abundant, these Hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely...they touch any other form of food until, either by advancing season or other natural causes, the grasshopper crop is so lessened that their hunger cannot... | |
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