Figure 9.37: December wintering bird survey results mid to high tide data, file type: PDF, file size: 670 KB
Ffigur 9.37: canlyniadau Rhagfyr o arolygon adar sy'n gaeafu data llanw canolig i uchel, Saesneg yn unig, math o ffeil: PDF, maint ffeil: 670 KB