Introduction: Crow is a common name for birds of the genus Corvus, which belongs to the family Corvus, and is a common name for several black birds of the family Corvus. Also known as the old man, he likes to sing and has a fierce temperament. It is the largest individual among passerine birds, with a body length of 400 to 490 mm. Feathers are mostly black or black and white, with long beaks, some with distinctive white collars, and Kuroha has a purple-blue metallic luster; Wings are much longer than tails; The mouth, legs and feet are pure black. There are 36 species of crows, which are distributed almost all over the world. There are 7 species in China, most of which are resident birds.

Realm: animal kingdom;

Phylum: Chordata phylum;

Class: birds;

Order: passeriformes;

Family: Ravidae;

Living habits: Bald-nosed crows are widespread from east to northeast of China.