The second broods of martins have started leaving their nests. This little chap was found just outside our front door, he/she could flutter but not fly. There was no obvious injury and he would soon come to grief on the ground, so he was put back in one of the nests (the right one I hope) where he is now to be seen perched on the edge chirruping away.
Notice the little feathers on the legs, a characteristic feature of martins.
Post script 23/08/2014
After another two days in the nest this martin appears to have fledged. Having held this scrap of life in my hand for a few brief moments, I can only marvel that it can make it all the way to somewhere in Africa (no one knows quite where, see this link for more information).