Reading, UK - today, which rather surprised me to still see a flock of Swallows around. I find them really hard to photo - they notoriously don’t land, and fly fast, so this lot of photos is as good as I get.
Canon R6 + RF 800mm, 1/1250s, ISO 100 or 350 for these
Not that I’m aware of - just eats storage and battery! That said, with a heavy camera, you’re unlikely to keep it firmly on target for much of the burst!