Kingsnake

Kingsnakes are colubrid snakes. They are members of the genus "Lampropeltis", which include milk snakes and four other species. There are many subspecies, and experts differ on their classification. These snakes are mostly found in North America and Central America.
They use constriction to kill their prey. They prey on other snakes, including venomous snakes. They are immune to the venom. They also eat lizards, rodents, birds, and eggs.
Their colouration is an example of Batesian mimicry, because it is very similar to venomous coral snakes living in the same areas. This gives the kingsnakes protection from the birds which prey on them.