I finally found a publication of Iain Mac a' Ghobhainn's poem "Coinneach Odhar". It takes up over 8 A5 pages in the book, so I'm not about to type out the full poem. But if you have some Gaelic and are keen to read the poem, try to get a hold of Iain Macleoid, compiler. "Bàrdachd Leodhais". Glasgow: Alasaird Mac Labruinn [McLaren], 1955 (pp 101-109) or the 1998 reprint published by Acair, Steòrnabhaigh (Stornaway, Isle of Lewis)(pp 120-29).

This 19th century poet is not to be confused with the 20th century writer of the same name. See my message of 14 Feb. There are several poems by Mac a' Ghobhainn in the compilation by Macleoid.