Very dark & not in focus ( apologies but even the Pixel 6 Pro at x20, is struggling, especially given the operators inability to keep it still :-( ..!.  ) & way up in the barn yesterday evening, Mum & Dad Swallow were racing back & fore, feeding this second brood.. 
The one on the right was constantly trying his wings & cleaning himself & although he's not the biggest, I suspect he will be flying first..

The Martin is still sitting on her second clutch in the shelter..