We have hardly heard a grasshopper warbler at Fowlmere since they last bred in 2011, but this week one has been singing strongly near the boardwalk. I suspect it is a new arrival, because although most of the local birders tend to visit the reserve in the mornings rather than the evenings, it should have been heard before now if it had been present. The best place to stand is on the mound that overlooks the reed bed a few yards from the boardwalk.