Any snakes on the isle of Ireland?

Did you hear the legend of St. Patrick driving snakes out of Ireland? Some say he didn’t need to; Ireland never had snakes. I wasn’t there, so don’t know. The more north you travel, like Alaska, the less reptiles you find. That includes snakes. Scientists claim once the earth warmed from the ice age, a land bridge to Ireland never existed for the snakes to cross. The same is true for Iceland, Greenland, Hawaii, New Zealand, and Antarctica. What do you think? Snakes are not mentioned in Trapped.