Phiggsbroadband,
Thats where the Wildlife Controllers proffessionalism should come into it. A good WCO will know where the wildlife is likely to go based on previous observations. For example I know where our 2 onsite Fox dens are and where the Rabbit Warren entrances are so I know where the foxes are going to and from.
This allows me to pre-empt what clearance I am likely to require and get the request in early as to where I need clearance to operate.