if you know the approximate year in which you male ancestor was born but cannot locate his bapt or marriage, search such indexes for teh wedding entries of females of the same surname and generation as these can often lead you back to where he came from too as brides tended to marry in their own parish.
you can then begin to hunt for his baptisim
if you havent been lucky enough to trace a marriage then tackle his parish of residence first, if you know this. you will need to covera wide perios if you do not have an approximate eyar of birth (men can father children right up to detah so this is a false indicator) ifhe died after 1812 the burial register will invariably record his age (be the age right or wrong! )