Any of several blackbirds of the genus passeriformes. Crow, a Chinese word, pronounced wyā, is the common name of several black birds of the genus passerine, also known as crow, and likes to sing. It is the largest bird in passeriformes, with a body length of about 50 cm, black feathers all over or most of it, and strong clustering. A group of up to tens of thousands of birds live in forests or fields, which are forest and grassland birds. They mostly nest in trees, mainly foraging on the ground, and their gait is stable.