Fig. ti'J. L a p w i n g 

 ( VaiielliiH capella) on its 

 nest. Obliterative shad- 

 ing, eye-masking and 

 shadow-picturing oblit- 

 erative patterns. 



Photographed from life by 

 Cherry a,nd Richard Kear- 

 ton. Courtesy also of Cas- 

 sell & Co. ' 



