Raven is a relatively large bird, and has considerable intelligence and direction recognition ability, so it is often used to deliver letters. The average life span of ravens is very long, and some can be as long as 100 years. Raven is a kind of solitary bird with simple and harsh song. Omnivorous, mainly feeding on rats, small birds, insects, but also eat the fruits of plants.

Raven's courtship flight is very spectacular, including high flying and various complex aerial stunts. Powerful flight, flying with the air, sometimes rolling in the air. Attack and kill other Raptors from time to time. Ravens, like crows, are noisy, active and intelligent birds. They have a wide range of voices and can emit large and diverse calls. Ravens have unique deep calls, including the quack, rattle, sharp metal sound, high knock, low quack and sound close to music. Experienced listeners can recognize the difference between crows and crows and distinguish different kinds of ravens.

Source: @stefaniemip