To mark the start of Wales Nature Week, the Deputy First Minister has seen for himself conservation efforts underway to save one of Wales' most endangered birds – the curlew.
I nodi dechrau Wythnos Natur Cymru, mae'r Dirprwy Brif Weinidog wedi gweld drosto'i hun ymdrechion cadwraeth sydd ar waith i achub un o’r adar sydd fwyaf mewn perygl yng Nghymru – gylfinirod.