When should I report a potentially injured-looking animal to authorities in a large, monitored, wildlife area?
We prefer watching animals from a distance, to try and cause them the least disruption. Every so often I've seen an animal in a distant part of a large area that doesn't appear to feel right. For instance, it may be limping a little bit, or missing an area of fur, which could indicate injury. Some animals that fight with each other, especially during mating season, can cause great harm, which is often obvious. Other times the damage is less obvious. Many times it's just natural changes that are part of being a wild animal.
Of course if we saw something drastic, like bleeding, crying, having trouble standing or running, or being picked on by other animals, I'd immediately report it.
I'm more confused if I feel that something doesn't seem right but am not sure. I'm particularly sensitive to animals, and can worry more than necessary. I've left places wishing I'd spoken up, but have just assumed that the rangers will see what I saw as they tend to their inhabitants.
If I don't have real evidence that an animal's in trouble, should I just leave it alone and assume the park rangers will handle it? Is it more helpful to at least report it, even if I might be over-reacting?
For this question, I'll focus on animals that permanently reside in an area which is fully-staffed with people who closely monitor them. There are many of those places world-wide. If that's too broad, I could use an example such as America's National Park System, where a standardized strict animal care system is in place.