The crow is the most harmful bird. He feeds on carrion and also carries hog cholera by feeding on the dead hogs. He commences feeding at the ear arid there takes his fill, then flies from one farm to another and so carries the disease. Loss from hog cholera three years ago was ninety-nine thousand and nine hundred and ninety hogs; two years ago it amounted to one hundred forty-seven thousand six hundred and seventy. The crow will carry the foot and mouth disease in the same way and also destroys the newborn sheep in the pasture by picking out their eyes.
Proceedings of the Iowa Academy of Science
©1915 Iowa Academy of Science, Inc.
Proceedings of the Iowa Academy of Science, 22(1), 345-346.
Available at: https://scholarworks.uni.edu/pias/vol22/iss1/52