If you are performing an alpha diversity assessment for a local playground area what do you think would be the best action in the following situation?
Sitting on a nearby bench, you feel confident you have recorded all the animals seen in the playground from your viewpoint. A noise above you draws your attention to a large bird flying overhead--a hawk. This hawk seems to have flown into the park, originally from outside your bounds of study.
Should this species sighting be included in your assessment?