Hummingbird cocaine? I think any faster and they'll explode. Or at
least warp time...

       Hummingbird wings are so fast it's next to impossible to get shots
where they're *not* blurred to some extent - even with strobes it's hard to
get a clear shot. And then there's the focal plane shutter issue, which
means it can make sense to use slow film and a slower shutter speed,
believe it or not, and provide all of the light from the strobe.

       Good luck with it! I never got anything decent when they were
visiting my feeder, a few years back.

    - Al.