Rain coming straight down quite hard, sitting alone under awning. Swallows or ?? Zipping by, as near as a half metre away, as low as 5cm off the ground, probably a dozen or more. Or just over the awning, round the van, so fast, it's so exciting! Very pale underneath, looks like dark blue on top, very swept back wings and tails. Occasionally nearly colliding from opposite directions. Half expecting one to fly under the awning, one just now so close!! They are bigger than House Martins. Location SW France. Any ideas?