UPDATE 1st June, 2018: We just set up snake_ID, a cool new page that simplifies snake identification. Be sure to check it out!

Thelotornis kirtlandii

Northern twig snake

Venomous 💀💀💀💀 Very dangerous ref
Images provided by Flickr-/iNaturalist-API. Sporadic false assignments may 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.
  • Snake Length

  • 25 cm - 170 cm ref
  • Dentition

  • rear-fanged
  • Weight

  • ??? gr - 69 gr ref
  • D.movability

  • fixed
  • Pupil shape (closed state)

  • Teeth/Fang Length


Altitude range

Vertical distribution

??? to ??? meter above sea level (a.s.l.)

Subspecies & Common Names

Thelotornis kirtlandii  0 AF Gewone Voelslang, DE Graue Baumnatter, Lianennatter, Vogelnatter, Vogelschlange, Zweigschlange, EN Bird snake, Forest twig snake, Forest vine snake, Green headed vine snake, Northern bird snake, Northern twig snake, Northern vine snake, Twig snake, LOCAL Ivissi, Mbeya, Ngasihiri, Singa

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