Things to see and do at this stop:
Near the middle of the right-hand bridge railing is an American elm with orderly rows of small pits in the bark. These were the work (many years ago) of a handsome species of woodpecker, the winter-resident yellow-bellied sapsucker. This bird drills through the outer bark of a variety of trees, shrubs or vines to reach the inner bark from which it laps up sap with a specialized brush-tipped tongue. He regularly visits the wells for the sweet sap and the insects it attracts, as do many small mammals, butterflies, and other small birds such as chickadees. Apparently the sapsucker returns to the same area and reworks the same plants each winter of his life. And it announces its presence with a very cat-like mew.
Directions to the next stop: