All summer & autumn Albert R. Brand has been roving the hills of New Jersey and southern New York. Before dawn he would drive his truck up beside a pre-selected tree or fence, bear to it a small, cable-attached object, then retreat to wait, watch, listen. Once he put his '"trap" on the limb where a song sparrow came each dawn to serenade his nesting mate; once near a beer barrel which a whippoorwill had chosen for its nightly concert stage.
Last week Ornithologist Brand returned in triumph to his post at Manhattan's...