Mainly because I find them fascinating little helicopters with personality!! Well and I have them at my feeder and fail to stop the wing action in motion. My conclusion is I can't walk on air so all shots end up shooting into the sun and the flash required to overcome that is not going to happen. Feeder is on the deck and I need to be shooting from the other direction not into the sun. I have few but mostly stills.
I have the same problem with light and speed where my feeder is. I make my own juice by mixing water and that raw sugar you can by everywhere these days.
I boil it a little so it stays fresher for them and I don't fill it too much so I have to refill with fresh food every 3 days. I make sure their feeder is squeaky clean.
Never feed them honey! It makes a mold on their beak that eats it away and then they starve to death.
I was mountain biking one day and saw a humming bird making big vertical oval flight patterns. It would hover at the top of the oval and then dive close to the ground and ascend again completing a perfect oval. I investigated and found a diamond back rattler.
A few weeks ago I was changing out the feeder and one comes up to me 3 feet away and hovering in one spot, did 3 perfect pirouettes like a ballerina and then flew off. Just awesome flyers! They're shy but not really afraid of us slower beasts LOL!
Here's a shot from my point n shoot Canon SX-100. I was 25 feet away and it's hard to get the right colors and light when you're on the fly shooting with these cameras. My wife, Lisa is the person who I need to get a real camera for. She has an amazing eye and heart for photography.
Also some of the humming birds are migratory and at certain times of the year we get a lot of customers and I have to keep my feeder topped off.
In this photo is my old feeder. I have a better one now with a perch...