What is "twig snake"

n. a venomous snake from the genus (taxlink Thelotornis genus noshow=1).

The twig snakes ( genus Thelotornis), also commonly known as bird snakes or vine snakes, are a genus of rear-fanged snakes in the family Colubridae. All species have slender and elongated profiles, long tails, narrow heads, and pointed snouts. The eyes of each species have horizontal pupils, shaped like keyholes, which give twig snakes binocular vision. Twig snakes are greyish-brown with faint light and dark markings. When threatened, they inflate their throats to display bold black markings between the scales.