. Diseases and enemies of poultry . in my first report, asgiven to me by Mr. Ladd, but I have since learned fromMr. Ladd that he did not secure or (nen see the hawks,hence I am satisfied that this record was withoutdoubt based on erro-neous identification. Dr. C. , of ITnited States Department of , D. 0., informs me that he is not aware ofa single authentic record of the breeding of the Rough-legged Hawk anywhere within the limits of the UnitedStates. SUBSISTS MAINEY ON FIEI^D MUK. in the Rough-legged HaAvk, we find another exam-ple of one of our larger feathered
. Diseases and enemies of poultry . in my first report, asgiven to me by Mr. Ladd, but I have since learned fromMr. Ladd that he did not secure or (nen see the hawks,hence I am satisfied that this record was withoutdoubt based on erro-neous identification. Dr. C. , of ITnited States Department of , D. 0., informs me that he is not aware ofa single authentic record of the breeding of the Rough-legged Hawk anywhere within the limits of the UnitedStates. SUBSISTS MAINEY ON FIEI^D MUK. in the Rough-legged HaAvk, we find another exam-ple of one of our larger feathered mouse hunters, whichis often slandered by the name of hen-hawk. Since the Scalp Act was in force, and thousands ofthe most beneficial hawks were slain, this s])ecies hasbecome, T might say, almost a i-are visitor to marshylands where in former years, T have found it frequentlyquite phmtifiil. The viscera of sixteen of these hawkswhich the writer has examined, contained only fieldmice and a few other small rodeurs. The food ROUGH LEGGED HAWK.(YOUNG) 193 given by JJr. A. K. Fisher, of 49 stomachs, shows conclusively that meadow mice constitute nlraost whollythe food of the species. Prof. Samuel .Vnghey foundthe remains Of a gopher, a small lizard, and seventyinsects in the stomach of a Rough-leg killed in Ne-braska, in September. 1872; however, such food ma-terials accoiding to most authorities, are .seldom the 49 stomachs referred to by Dr. Fisher, 40 contained mice, chiefly meadow mice; usually. 2 or ^ ineach stomach, scauetimes 4 or 5, and in severalstomachs, each contained 6 or 7 of these little animals. DESTROYS ENEMIES OP THE ORCHARD. The Rough-leg is one of the most nocturnal of our hawks,find may be seen in the fading twilight watching from somelow perch, or beating with measured, noiseless flight over itshunting ground. It follows two very diffor^nt methods insecuring food, one by sitting on some stub or low treeand watching th^ ground for the appea
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