Heather, is this the Hugh McIntyre whose certificate was issued on 8 August 1865? If so, the 1851 and 1841 census have him born on North Uist and there is an area called Bàgh Mòr shown on the map at https://osmaps.ordnancesurvey.co.uk/osmaps/57.4910621596,-7.2365196301,17/pin which might sound like Blavour to a non-Gaelic speaker. I don't speak Gaelic so you'd need to check the pronunciation with someone who does speak the language.