Stephen
Unfortunately I don't have a precise DOB.
The Ayshford Trafalgar Roll has him aged 25 in 1805.
The 1851 census has him aged 72 years.
So it looks to be 1779 plus or minus a year. But unfortunately no sign of him on the IGI.
All the evidence I have so far has him being both born and buried in King's Norton. So as soon as possible I will try and access the parish registers for KN and just comb through manually for the approximate periods of his birth and death.
Hopefully something will jump off the page!

Or maybe not!!

MB