Late Martins

Only once before have I found the nest of a pair of House Martins with young still being fed in the nest in October. Last week on a day of pouring rain I watched two young House Martins plucking up the courage to leave the nest and fly to Africa. It was an appalling day and when I checked the nest on the 2nd October they were gone so I wished them well on their flight south. Will they return to Castleton next year? lets hope so.