The raven recognizes its master. Ravens have a very high IQ and a very good memory, and can remember their owners quickly. A raven is very loyal to his master after recognizing him, and will only recognize one master in his life.

Notes on raising ravens:

1. Raising ravens requires raising them from fledglings. After they are raised, they will not escape easily when released. If it is an adult raven, it is difficult to recognize its owner, and the adult raven's intelligence cannot tolerate being kept in a cage for a long time.

2. Ravens are omnivorous corvids. In the wild, they feed on voles and carrion. In daily feeding, they can be fed some chopped vegetable leaves, eggs and meat.

3. Ravens like to play. The owner can prepare some small toys to play with the raven, which can also improve the raven's IQ.