I recommend Errwood really. Drive down to the reservoir, across the dam and park up on the right at the top of the hill. If you're there early you would be able to park in Errwood Hall car park which is further up towards Derbyshire Bridge, just before the one way system. If you walk along the road, up the side of the reservoir and cross the bridge, when you come to the car park, turn right and walk upwards towards the hall, until you come to another track, follow that track left keeping an eye out for tree pipits, redstarts, pied flycatchers and willow warblers. Follow this track until it meets up with the road again, cross the road, go through a gate and go onto a river walk up the valley. Follow this path, also possibilities of pied flycatchers, it was on this path I saw the spotted yesterday. Greater spotted woodpeckers frequent this area and there is also a possibility of tawny owls. Check the river for grey wagtails. This path eventually leads back to the road, it may be worth following the road up for a mile or so where you could see red grouse and possibly birds of prey. It depends how far you want to walk. If you are thinking of going very early tomorrow, there is a led walk by a Derbyshire Ranger from Derbyshire Bridge car park at 6 -9.45am. A dawn chorus walk which is about 5 miles, which I will be attending. good Luck and good birding.