狼顾鸱跱

Explanation: As fierce as wolves, such as the owl Zhili. For those waiting for an opportunity metaphor violent action. 　　Source: "History of Wei Chi One of the North": "Ming-yuan carrier at the beginning, the beginning of an outline given at the time the wolf care owl squat, even worse glimpse involved in the North, to the end of a heaven-sent, particularly in hard."