Hi Ronny-
One item that you will hear in this forum a lot is keep experimenting on the same shot if possible and even write down the parameters you used in each. I usually when reviewing my pics on the computer right click on the pic and look in properties and use that info. As you are aware Hummingbirds can be a challenge but when you get a good one rewarding. I live in a pretty extreme desert climate so rely on feeders not flowers to attract the hummingbirds so to an extent they are predictable when they are around....mainly early morning and about an hour before sunset. I just sit in a chair and have not used a tripod much since they go from feeder to feeder. I have not done anything to these pics yet in a software program to "clean" them up. Above all I am having fun and learning as I go.
Michael