Crows are extremely empathetic animals and often express their thanks for food by offering small gifts. For the past four years, eight-year-old Gabi Mann from Seattle has been showered with gifts of buttons, stones and screws. There are numerous examples of this kind of unusual human-animal relationship. Fellow American Lynn Witte raised an injured infant crow by hand and nursed it back to health. When she had learned to fly, ‘Sheryl Crow’ would regularly bring back gifts from her trips.