I had a stomp around the field and hedgerow on the 9 April and recorded the following species on or immediately adjacent:
Buzzard - flew over
I would expect the hedgerow to hold whitethroat and possibly lesser whitethroat (both migrants that winter in Africa and are arriving about now) where it is thicker. If it can be left to thicken up and not cut annually then that would really help birds, bugs the lot.
Click on the names of the birds for more information from the RSPB.
Photograph of a starling (c) M Nelson 2006