Keep a field journal, not a trophy list.
Make an ordinary observation worth returning to.

Write what you saw
Start with a date, a general location, and the conditions. Describe an action in plain language before giving it a meaning. “The animal moved away as visitors approached” is a clearer record than a claim about its mood.
Include the surroundings
Note the view, the vegetation, and your observation position. A wide scene often explains more than a list of species. Do not leave a permitted route or approach wildlife to make the record more complete.
Keep uncertainty visible
If identification or behaviour is unclear, say so in your notes. Mark the question for later reading rather than turning a possibility into a fact. Good field notes leave room to change your mind.
Return to one question
Before the next outing, choose one thing you want to notice more carefully. It might be a landscape feature, a change in light, or a detail in the park’s interpretation. A useful journal helps you look again, rather than simply count more sightings.
Check current local park guidance before a visit. Observe from a distance and follow posted instructions.