(c) Dr Chris Gleed-Owen - Amphibian and Reptile Conservation (www.arc-trust.org)

<i>Natrix natrix</i> .Grass Snake - on the move.
   
Natrix natrix .Grass Snake - on the move.
   
The Grass Snake is our largest snake in terms of length but is relatively slim. It is also usually not easily confused with our other two species. Here, the lack of markings on the back, the black band behind the head with the yellow collar in front of it are all clearly distinguishing characteristics