Wildlife photography depends on being in position and ready before an animal appears, since there's rarely a warning or a second attempt.
The single biggest preparation failure in wildlife photography is arriving underpowered — the wrong focal length, a slow autofocus setting, or a shutter speed that can't freeze motion when a moment actually happens. All of that needs to be decided before you're in the field, because there's no time to work it out once an animal is in frame.
Timing matters as much as gear: most wildlife activity clusters around dawn and dusk, and knowing the target species' likely behavior and habitat lets you position yourself instead of wandering and hoping. Patience is part of the plan too — the best wildlife sessions often involve long stretches of waiting, which only pays off if you were set up correctly beforehand.
Field ethics belong on this list, not as an afterthought: keeping a respectful distance and not disturbing habitat or behavior for a shot is both the right approach and, practically, what gets you natural, undisturbed behavior worth photographing in the first place.
A few things to plan for