Mariscal, Susan KathleenGordon, John David2014-08-282026-09-292014-08-282026-09-291985http://arks.princeton.edu/ark:/88435/dsp01wp988k09thttps://theses-dissertations.princeton.edu/handle/88435/dsp01wp988k09t386 PagesAn Investigation into the Sign Stimuli Governing the Pecking Response in Laughing Gull (Larus Atricilla) and Herring Gull (Larus Argentatus) ChicksPrinceton University Senior ThesesWalk-in Access. This thesis can only be viewed on computer terminals at the <a href=http://mudd.princeton.edu>Mudd Manuscript Library</a>.