Nice story, and glad it went on is way.
Isn't an encounter like that with a "common wild" animal, 1000x better then seeing any exotic animal in a zoo?
For me, there isn't any other sound that represents summer better then a group of swifts screaming! It just reminds me of those late hot summer afternoons, where the hot atmosphere just seems to hold you up in the air. Whenever i hear them i automatically calm down.