Leprechauns, Irelands penguin enemy

There are no squirrels in Ireland which leads me to believe it is the leprechauns who are at fault for no penguins there. We need to make sure we contain the leprechauns in Ireland for leprechauns deserve to live just as much as penguins. Ireland will therefore be declared a leprechaun safe zone, any leprechaun found outside of Ireland will be immediately transported back to Ireland. It is the only way to keep our cute little penguin friends safe from the Leprechauns. In order to execute this plan, we need to find all leprechauns and tag them with trackers. If they leave Ireland it will then be easy to find them and bring them back.