mouse-hawk

Red-shouldered blackbirds hovered, fluttered, dropped back into the tall reeds; meadow larks whistled sweetly, persistently; a slow mouse-hawk sailed low over the fields, his broad wings tipped up like a Japanese kite, the silver full-moon flashing on his back as he swerved.

Athalie Frank Craig 1899

In the marshes on the Delaware it is often called the mouse-hawk, for it sweeps swiftly along the low ground in search of a species of mouse common in that locality.

Nature's Serial Story Edward Payson Roe 1863