Swanholme Lakes sees first adder 'in 10 years'
The UK's only venomous snake has been spotted at a Lincoln wildlife reserve.
Staff at Swanholme Lakes said it was the first confirmed sighting of an adder they were aware of in at least 10 years.
The species, which is believed to be in decline, can deliver a painful bite but is rarely fatal.
Officials said the generally secretive snake had been seen in a fenced-off area and was unlikely to move to nearby Hartsholme Country Park.
Senior Ranger Ruth Simons said: "We are very pleased and excited at having a new species confirmed in the Lakes where the habitat is ideal for adders.
"It is a fenced-off area with restricted access and, if left undisturbed, adders will leave people alone so the advice if anyone should see one is just that - leave it alone, especially this time of year when they are just waking up."