Sunday 01 April, Gaucin, light SW wind, mostly cloudy, occasional rain showers, 13C: Looking out of the bedroom window at 0800hrs I heard my first Nightingale in the valley to the south of Gaucin. With the continuing SW wind the migration was again in full flow. A walk along the Rio Genal below Gaucin from 1030-1230hrs produced a flood of sightings - mainly Booted Eagle and Black Kite with the occasional Short-toed Eagle and Common Buzzard mixed in. I gave up counting the Booted Eagles, there were literally hundreds of them pouring up the valley towards Gaucin. Interestingly many birds were also coming in from the South-East (Estepona/Marbella direction) between Sierra Bermeja and Los Reales before 'joining' those that had come from a more southerly direction to head up towards Gaucin. There were also several groups of 10-20 Bee-eater and lots of Barn Swallow and a 'local' Bonelli's Eagle and Goshawk. In the bushes alongside the river there were two or three singing Nightingale along with the usual Cetti's Warblers. Just as I was about to leave a flock of 10 Common Crane made their way gracefully up towards Gaucin castle. Back in the village in the afternoon the onslaught of Booted Eagle and Black Kite continued unabated and there were also an Osprey and 3 Black Stork (1600hrs) plus a distant pair of juv/female Montagu's Harrier.