The western brown snake is also commonly referred to as the Gwarder. Its body is of slender build and its neck is not that distinct from its body.
The body coloration is highly variable and there are sixteen known colour morphs including one that has a completely black neck and head.
This form has on occasion's confused people into thinking that they have found a black headed python and this mistake has resulted in serious bites.
Although its venom it delivers is not as toxic as the Eastern brown snakes venom, it does however on average deliver approximately three times as much and therefore is an extremely dangerous reptile.
The western brown shelters in ground burrows, under rocks, soil cracks, inside logs, and will readily take refuge under rubbish or tin piles. They prey upon rodents, small mammals, small birds, mice, snakes, and lizards. Mating seems to occur around spring and the female can lay up to 38 eggs.