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Thelotornis kirtlandii

Northern Twig Snake

Venomous 💀💀💀💀 Very dangerous bite ref
Images automatically provided by Flickr & iNaturalist. Sporadic false assignment does occur.


This snake has a potent venom that killed a few herpetogists in the past. It can take up to 48 hours until first symptoms of envenomation show. Bit victims usually die from massive inner bleedings. There is no antivenin available.
  • Length Adult

  • up to 171 cm ref
  • Length Newborn

  • 25 cm ref
  • Reproduction

  • oviparous ref
  • Pupil Shape (when closed!)

  • keyhole shape (horizontally elliptical) ref
  • Fangs

  • fixed ref rear-fanged ref

Subspecies & Common Names

Thelotornis kirtlandii  AFRIKAANS Gewone Voelslang, ENGLISH Bird Snake, Forest Twig Snake, Forest Vine Snake, Green Headed Vine Snake, Northern Bird Snake, Northern Twig Snake, Northern Vine Snake, Twig Snake, GERMAN Graue Baumnatter, Lianennatter, Vogelnatter, Vogelschlange, Zweigschlange, UNCODED LANGUAGES Ivissi, Mbeya, Ngasihiri, Singa ref

Full Taxonomy

  • I. Superfamily Colubroidea

  • Colubrids, elapids and vipers
  • II. Family Colubridae

  • Colubrids
  • III. Subfamily Colubrinae

  • Colubrids
  • IV. Genus Thelotornis

  • Bird snakes
  • V. Species Thelotornis kirtlandii

  • Northern twig snake
  • VI. snakeID

  • 2289
Look up complete taxonomic records of Thelotornis kirtlandii (including synonyms) at THE REPTILE DATABASE (by Peter Uetz et al).