1. Different species: Quails belong to the genus Quails of the Pheasant family, and pigeons are the general name of the genus Pigeons.
2. Different body types: Quails are smaller, with the longest body length of 18cm and weight of 106g, while pigeons are larger, with the body length of 53-56cm and the weight of 600- 1000g.
3. Feather colors are different: quail feathers are dim, while pigeon feathers are bright and miscellaneous.
4. Different reproduction: the male and female birds of quail will not form a fixed spouse. Generally, a male bird will have more than one female bird, while pigeons have a fixed spouse relationship. The male pigeon will always chase the female pigeon and take turns to hatch.