Wildlife photography is about catching the right moment. Patience is important in this business, because you cannot force animals to do what is good for picture, and you do not want to. I like it to take my time to get to know the animals I want to shoot. Research is important but also just watching them doing what they are used to do. Some moments are impressive and beautiful, some are touching or tragic, und some are just funny.
For me it is very important not to disturb the animals or to scare them. This is the first rule for the safety of the animals and your own.