improved fields, in whole or in part, identified as habitat land which have been used to take hay or silage over the past five years or are intensively grazed.
cae neu ran o gae sydd wedi’i wella a’i nodi fel tir cynefin sydd wedi cael ei ddefnyddio i gynhyrchu gwair neu silwair arno dros y pum mlynedd ddiwethaf neu sy’n cael ei bori’n ddwys.