Two ideas:
List of Birds - the idea being you check off the species you've seen. I have the Stokes Field Guide to Birds, Western Region, which would fit well with a western peaks list. Approx 500 species; the book breaks them into 23 major groupings. Could be fun to have a tree with the taxonomy - common to all would be:
Kingdom - Animalia
Phylum - Craniata
Class - Aves
Then they would break into Order, Family, Genus, species.
On a lighter note, we just got a Chilis in Brighton, and a menu ticklist would be helpful. Could expand the beer section to Lists of Consumption.