 | U.S. department of agriculture Commissioner's OFfice - 1889 - 842 էջ
...of great interest, and considered in its economic bearings is one that should be carefully studied. The Sparrow Hawk is almost exclusively insectivorous...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare: and beetles, spiders,... | |
 | United States. Department of Agriculture - 1889 - 858 էջ
...of great interest, and considered in its economic bearings is one that should be carefully studied. The Sparrow Hawk is almost exclusively insectivorous...hunger can not be appeased without undue exertion. Then other kinds of insects and otner forms of life contribute to their fare; and beetles, spiders,... | |
 | 1889 - 860 էջ
...of great interest, and considered in its economic bearings is one that should be carefully studied. The Sparrow Hawk is almost exclusively insectivorous...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare; and beetles, spiders,... | |
 | United States. Department of Agriculture - 1889 - 852 էջ
...where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized Hocks, and gorge themselves continuously. Rarely do they...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare; and beetles, spiders,... | |
 | 1893 - 320 էջ
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Barely do they touch any other form of food until, either...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare; and beetles, spiders,... | |
 | Albert Kenrick Fisher - 1893 - 324 էջ
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Barely do they touch any other form of food until, either...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare; and beetles, spiders,... | |
 | 1895 - 656 էջ
...of great interest, and considered in its economic bearings, in one that should be carefully studied. The sparrow hawk is almost exclusively insectivorous,...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.... | |
 | Pennsylvania. Dept. of Agriculture - 1897 - 1104 էջ
...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 cannot be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | Leonard Pearson, Benjamin Harry Warren - 1897 - 1114 էջ
...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 cannot be appeased without undue exertion. Then other kinds of insects and other forms of life contribute... | |
 | 1898 - 262 էջ
...abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Earely do they touch any other form of food until, either...hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of life contribute to their fare. Beetles, spiders, mice,... | |
| |
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.... 
