A Ross's Goose was reported by a UI student this AM and was still present mid-day at the UI Arboretum at the grassy edge of the lower pond. It appears a bit gimpy in one leg but seems to be able to fly. It was wary and hanging out w/ Canada Geese which were occasionally bossing it. A female Wood Duck was on the pond (a decent bird in town here). Otherwise fairly quiet as the Arb which is often the case here on a warm mid-day (but I didn't have much time to look around). I might have heard a brief snippet of Cassin's Vireo song.