Forest vine snake
species of reptile

The forest vine snake (Thelotornis kirtlandii), also known commonly as the forest twig snake or simply the twig snake, and as the bird snake (as are other members of the genus Thelotornis), is a species of venomous snake in the subfamily Colubrinae of the family Colubridae. The species is endemic to Africa.
Description
As an adult, T. kirtlandii usually has a total length (including tail) of 0.9–1.4 m (3.0–4.6 ft). The maximum recorded total length is 1.6 m (5.2 ft). The body and tail are very thin and are cylindrical in cross section. The tail is very long, 33% to 42% of the total length. The dorsal scales are arranged in 19 rows at midbody, and are feebly keeled. The top of the head is green, and the upper labials and chin are white. Dorsally, the body and tail are grayish brown. Ventrally, the snake is light gray, speckled with black.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 17, 2026. The linked authority identifier is Q3523554. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Forest vine snake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.