Number observed: 1
Details: not sure if I saw 1 or 2 different birds; in the low brush and trees at edge of pond. The coloring - light gray with an olive tinge, with black & greenish streaked (closed) wings with a white stripe - at first made me think of a female goldfinch, but it was much too small and rounder. Then I saw a distinct white eye-ring. The bird was flitting quickly from branch to branch. I couldn't get a photo, and the bird did not sing.
Number observed: 2