If you haven’t received one in ages and it has gone into your main mailbox as opposed to spam, it could actually be genuine. Definitely worth pursuing mate.
They have a pretty clever scam at the moment, where the scammer calls you, tells you there has been suspicious activity on your account and to contact to your local branch. The victim then hangs up, and dials the local branch, but the previous call is never terminated so they get reconnected back to the scammers, who then proceed to milk all of the victims bank and personal details.
A colony of less than a dozen of them landed in Wexford in 1679 after they were blown across from Britain during a fierce storm. All the magpies in this country are descended from them.
The magpies had obviously sussed out that Wexford would welcome them with open arms and allow them to use the place as a launchpad to take over the rest of the island.