320. Defences.

Anything done in pursuance of a requirement of the appropriate authority in relation to the prevention of damage by pests1, or anything done under or in pursuance of certain orders made under the Animal Health Act 1981, 2or except in the case of a wild bird included in Schedule ZA1 or 1 to the Wildlife and Countryside Act 19813 or its nest or eggs, anything done in or in pursuance of an order made under any other provision of the Animal Health Act 1981, 4is not an offence against the general provisions for the protection of wild birds, their