When learning how to identify plants and animals for the first time, it may be helpful to work in reverse.
Rather than find a subject then trying to identify it, study something in your newly checked out
library books, then go out and find it.
Select something from your checklist that you believe is common in your area, then go out and search for
For example, if you know that there are oaks in your area, you could study oaks and how to distinguish them
from each other, then seek them out.