That.....is....awesome! I'll refrain from my absolute want to begin quoting lines from Monty Python's Quest for the Holy Grail regarding swallows great job!
Thanks guys, yeah I try to approach any birds I see very slowly and never in a direct line....I always meander my way........which more often than not results in what you see here.
In all cases though I always get my craft way closer to them than they would ever allow me with my DSLR