Much of the latter part of April and the first week of May is taken up with what we call ‘colony set up’. We have four sites on the east Norfolk coast which are potential breeding sites and in much the same way that little terns will prospect the coastline for good habitat when they arrive the wardens do the same a month or so previously. Large areas are cordoned off with a rope fence and a slightly smaller inner area is protected with an electric fence. The earlier we can get the rope fences up the sooner we can begin to protect the fragile habitat from trampling - by dogs and humans. And the electric fence will begin to work its magic on the local population of foxes. The fence is not designed to do any physical harm to the fox but rather it will act as a deterrent. After a few sharp zaps to a wet nose it will soon learn to avoid the area. A couple of weeks after the electric fence is erected on one of our more remote sites we are rewarded with the pleasing site of a full clutch of ringed plover eggs - just inside the electric fence. Photo credit: Ben Dymond.