Nice captures - what gear did you use(?)...not to much you can do with these as with all animals in the wild, you take what you can get where and when you can get it. If you are getting into "wildlife" photography, you might think about just sitting where you can observe the animals and watch. I find that after about 30 minutes or so, most animals get used to you, particularly if you are in a "national park" of some sort. When they stop staring at you and go back to their "business" you can often get good candid shots. One thing about shooting wildlife is that you need to make sure that the eyes are in focus and, if possible, try and get a "catchlight" in the eye. Depending on the distance between you and the animals and their tolerance for people, maybe get out of the car.
Cheers,
WesternGuy