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Grass snake
Natrix natrix  

Grass snakes are found throughout England and Wales but are absent from Scotland. They’re quite often seen in gardens, especially those with ponds which the snakes can hunt in. Grass snakes are quite timid, often feigning death if disturbed; alternatively they may excrete a foul-smelling liquid.

Statistics

Size: 15-100cm (but can reach over 150cm).
Colour: usually a shade of green, grey or brown, with a cream, yellow or light green belly.
Markings: a yellow and black collar behind the head and dark bars or spots along the sides and sometimes the back; dark patterns over the belly.
Status: widespread and common but thought to be declining; protected by law from deliberate killing, injury and trade/sale.  

A snake’s life  

Grass snakes are the UK’s only egg-laying snake. Eggs are laid in June/July in rotting vegetation (including garden compost heaps), which acts as an incubator. The eggs hatch in late summer – the juveniles (around 15cm long) look exactly like miniature versions of the adults.  

Grass snakes hibernate between November and March.  

Adults emerge during March/April, with males appearing before females. Mating takes place in April. The rest of the year is spent hunting for amphibians or fish, though they do not eat large meals very often.  

Primary threats

Loss of habitats.

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