Definition of birkdale:
(n) :
A suburb of Southport, Metropolitan Borough of Sefton, Merseyside, England (OS grid ref SD3315).
(n) :
A coastal locality in Redland City, Queensland, Australia.
(n) :
A suburb on the North Shore of Auckland, New Zealand.
(n) :
A valley and hamlet in Muker parish, Richmondshire district, North Yorkshire, England (OS grid ref NY8301). The valley is also spelt as Birk Dale on maps.