Like the others I wouldn't worry about wing blur necessarily - it can add to the impression of speed of movement.
In my experience what works well with hummingbirds depends on a number of factors that can vary a lot from location to location.
- What is the light like? Are the feeders shaded by trees or are they in the open? If the former you'll struggle between getting the exposure time down while not letting the iso rise too far. Flight pictures become tougher. A faster lens is better. Perched birds are much easier than flight shots when the light is bad. Do look around - hummingbirds, in particular the smaller species, are good at secreting themselves away on temporary perches while they wait to have another go at the feeder. Fill flash may hepl - in my experience birds are quite tolerant of this.
- How tolerant of human beings are the birds? I've been to places where they pass within centimetres of humans, and others where they won't even come in if there's somebody staying too close to the feeder. If the former than think about what you can make out of being able to get close - unusual feather detail, for example. I've had some luck with taking portraits of only the heads when the birds were on feeders in a way that there were no man-made structures in the shot. If you have to keep further away then try for approach shots. Some species will not perch long on the feeder, but they'll hover in front of this - again this gives a chance for flight pictures without the feeder in view (my strong preference is to avoid that - everything else is a record shot as far as I'm concerned).
- Flight shots without the `four flash setup' are tough because hummingbirds move so fast and unpredictably. Getting them into the viewfinder is hard, and the camera needs to be aimed at the subject to focus.
Feeders help with predictability, so spend some time watching. Are there species which hover? Are there feeders where there's a particular approach line? Also, if you're in a very busy place you'll sometimes find birds squaring off against each other, which usually means some hovering, so it gives chances for flight shots.
- How busy are the feeders? How many are there? Are you spoilt for choice because there are always at least a dozen birds somewhere in view, or do you have to bid your time? I've experienced both. The latter is always a problem because it feels as if one is always in the wrong spot...
Do take a bit of time to study the set-up - I'm bad about just wanting to not miss a shot and that means I sometimes don't spend enough time planning. Later I realize there were opportunities I just didn't notice while I was present.
I think hummingbird photography is great fun, so I hope you'll have a good time.
Andrea