Hailman, Jack Parker,  <br/><br/>
The ontogeny of an instinct  the pecking response in chicks of the laughing gull (Larus Atricilla L.) and related species 
by Jack P. Hailman. 
 - Leiden  E. J. Brill  1967 
 - vii, 163 pages:    illustration;   24 cm. 
 - Behaviour  suppl. 15 .
<br/><br/> Summary in German. 
<br/><br/>Bibliography: p. 135-142. 
<br/><br/><br/>eng ger 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Laughing gull<br/>Birds--Behavior<br/>Instinct