Thanks Bill,
...and yes, 45 miles north but 4700+ miles east (or west, doesn't make much difference) in northern Zealand, Denmark
Relative to our latitude we have very mild winters due to the warming effect of the Gulf Stream and adder emergence around the beginning of March is quite normal. This is exceptional though, easily the earliest date I have found any out. The weather this past week has been crazy. Plenty of sun and relatively high temperatures since Monday, peaking above 10 C / 50 F Friday and Saturday lured this one out a couple of weeks early.
The amphibians are also moving. I found ten agile frogs and eight smooth newts Thursday night. Others have also recorded great crested newts, grass frogs, common toads and even a slow worm.
February spring is a crazy thing.