Is there a difference between the sparrow and Jiaer'er?

There is no difference between sparrows and Jiaer'er, the latter is commonly known as the former.There are 27 types of birds, and their size and body color are very close. There are brown and black spots on their bodies, with a length of about 15 cm.Usually inhabited at a place with an altitude of 300-2500 meters, it is lively and bold. It is also common at the gathering of human beings. It is mainly eaten by grains, and it also eats foods discarded by humans.