Bethan Wyn Jones a'i gwesteion yn trafod byd natur a chadwraeth. Bethan Wyn Jones and guests discuss the worlds of nature and conservation.
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Bethan Wyn Jones a'i gwesteion yn trafod byd natur a chadwraeth. Bethan Wyn Jones and guests discuss the worlds of nature and conservation.
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
