Have you ever seen magpies and crows? Magpies and crows are actually very similar in appearance, and both belong to the Ravidae family of birds. However, magpies are very popular, but crows are disgusting. In fact, magpies and crows belong to the same species and look similar, but people have different attitudes towards them because of their different calls.
Crow (scientific name: Corvussp. ): It is the common name of several blackbirds of the genus Spartina. Also known as the old man, his mouth likes singing. It is the largest bird in passeriformes, with a body length of about 50 cm. The whole body or most of the feathers are black, hence the name. Feathers are mostly black or black and white, with long beaks, some with bright white collars, and Kuroha has a purple-blue metallic luster; Wings are much longer than tails; The mouth, legs and feet are pure black. The distance from the nostril to the forehead is about 1/3 of the length of the mouth. The nose must be straight and reach the middle of the mouth.
It mainly inhabits various forest types, such as low mountains, broad-leaved forests in plains and mountains, mixed coniferous and broad-leaved forests, coniferous forests, secondary mixed forests and artificial forests. , especially in sparse forests and forest margins. Mostly resident birds. Strong clustering, a group can reach tens of thousands. Live in groups in forests or fields, especially in forests and grasslands, and most of them nest in trees. Mainly foraging on the ground, the gait is stable. Except for a few species, they often nest in groups and wander in groups in autumn and winter.
Complex behavior, showing strong intelligence and social activity ability. Generally fierce and aggressive, they often prey on eggs and chicks in waterfowl and wading nests. Omnivorous, eating grains, berries, insects, carrion and eggs of other birds. Many species like to eat carrion. It is distributed almost all over the world.