What does it say in licence about herons, and urban foxes last year i had six of my koi carp taken, all around may and june time, and last month i had three more taken from my pond. After last years loss i covered the pond with wire mesh, but that was destroyed by urban foxes, is a pcp rifle strong enough to take out a fox? if it was allowed. and the herons have ruined the ponds of quite a few people i know. As far as i know these menaces are protected, whats your view?