Chipping Sparrows migrate through New York City in extremely large numbers. Several years ago Doug Gochfeld, Marge Raymond and myself observed a single flock in Green-Wood Cemetery that we estimated at around 20,000 individuals. During the breeding season they are relatively scarce in Brooklyn, with Green-Wood Cemetery being the best place to find them as they nest in conifers (Green-Wood has many healthy evergreens). This prematurely fledged youngster was in danger of getting stepped on or run over by a lawn mover. I picked up the feisty little sparrow and placed it on a high, flat-topped tombstone where the parents immediately attended to it.