Thank you Ruskie. There’s another birth the previous month at Kilmichael, which would seem likely to be the same place? And one a fortnight before John, again at Kilmichalmag, written clearly that way.
I’m struggling with my unfamiliarity with the geography, and indeed Gallic/Scots spelling of names. When John married in April 1767 (OPR Marriages 558/30 14 Rothesay) he is described as son of William Bannatyne in Gorleans, and his wife Margaret Whyte as daughter of Archibald Whyte tenant in Craeslaigmorie. When John and Margaret’s son Robert was born in 1772, John is described as a boatman in Rothesay, and Rothesay becomes the normal place name from then onwards. Because I am doing this all through Scotland’s People, it’s not easy to pick up family groupings, especially when Bute seems to have had quite a few Bannantyne families. I;m grateful for your suggestions.