Iolo Williams a Russell Jones o'r RSPB yng ngwarchodfa natur Ynys-hir ger Machynlleth. Iolo Williams and the RSPB's Russell Jones at Ynys-hir nature reserve near Machynlleth.
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Iolo Williams a Russell Jones o'r RSPB yng ngwarchodfa natur Ynys-hir ger Machynlleth. Iolo Williams and the RSPB's Russell Jones at Ynys-hir nature reserve near Machynlleth.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
