No interactions present.
I had no idea - is the end of September late for swallows? I ask out of sheer ignorance.
It's getting late, but there are still plenty around at that time, including in the UK, where large numbers can pass south in late September.
Incidentally...all Swallows do have long tails, but not when the feathers are growing as a young bird or after a moult, obviously.
My Flickr photos...
"most swallows do have long tails, the only exceptions are young or moulting birds"
Lat/Lng: 38.65, 20.768