Rather than describing community or system level work with wild creatures, it presumes that the landowner or some person has a species of great interest and wants to keep it at present levels of abundance or to change that abundance. Herein, each species is treated as a system. There have to be objectives , the more precise the better.
Information is needed.
Field guides are available . Processes are fairly straight-forward but explained in some cases. Feedback is simplified here and usually means watching the population or its effects to see if the actions taken do what you want them to do. If they do not, then change the tactics, the objectives, seek more information, or evaluate the monitoring procedure itself. For example, don't build a pond for animals if a nearby golf course will build one within a year.