"For info ~~ Northamptonshire, where I lived for some years during WWii, is very much within the "Me duck" zone."

I grew up in Peterborough (which was once in Northants for sort of 'postal purposes'). One occasionally heard 'duck' there but (if my memory serves me correct)one was usually addressed as 'mate' - as in: "are y'all roight, mate - didja come on yer boike?"

Such exquisite vernacular poetry!!