Iolo Williams a Gethin Elias o'r RSPB yn gwylio adar ar rostir y Mignaint. Iolo Williams joins Gethin Elias from the RSPB as he surveys birds on the moorland of the Migneint.
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Iolo Williams a Gethin Elias o'r RSPB yn gwylio adar ar rostir y Mignaint. Iolo Williams joins Gethin Elias from the RSPB as he surveys birds on the moorland of the Migneint.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
