"Yes; our duck or great-footed hawk is almost identical with the well-known peregrine falcon of Europe. It is a permanent resident, and breeds on the inaccessible cliffs of the Highlands, although preferring similar localities along a rocky sea-coast. There is no reason to doubt that our duck-hawk might be trained for the chase as readily as its foreign congener. It has the same wonderful powers of flight, equal docility in confinement, and can be taught to love and obey its master. I have often wondered why falconry has not been revived, like other ancient sports. The Germans are said to have employed trained hawks to capture carrier-pigeons that were sent out with missives by the French during the siege of Paris. In a few instances the duck-hawk has been known to nest in trees. It is a solitary bird, and the sexes do not associate except at the breeding season. While it prefers water-fowl, it does not confine itself to them. I shot one on a Long Island beach and found in its crop whole legs of the robin, Alice's thrush, catbird, and warblers. It measures about forty-five inches in the stretch of its wings, and its prevailing color is of a dark blue. "The pigeon-hawk is not very rare at this season. Professor Baird describes this bird as remarkable for its rapid flight, its courage, and its enterprise in attacking birds even larger than itself. This accords with my experience, for my only specimen was shot in the act of destroying a hen. He is about the size of our common flicker, or high-holder, which bird, with robins, pigeons, and others of similar size, is his favorite game. The sparrow-hawk is rare at this time, and is only abundant occasionally during its migrations. The red-shouldered hawk is a handsome bird, with some very good traits, and is a common permanent resident. Unless hunted, these birds are not shy, and they remain mated throughout the year. Many a human pair might learn much from their affectionate and considerate treatment of each other. They do not trouble poultry-yards, and are fond of frogs, cray-fish, and even insects. Occasionally they will attack birds as large as a meadow-lark. They have a high and very irregular flight, but occasionally they so stuff themselves with frogs that they can scarcely move. Wilson found one with the remains of ten frogs in his crop.