Fig. 73. Nighthawk chick, as. in Fig. 7-1. 



Photographed from life by F. H. Herrick. 



Fin. 72. Young Kilkleer Plover, 

 wonderfully 'obliterated ' by eounter- 

 sbading and ground-picturing pattern. 



Photographed from life by Finley & Bohlman. 



Fi<;. 74. Nighthawk 

 grou lid-pietu ring pattern s. 



Virginian m) chick— obliteratively-shaded, and further 'merged' into its background by blotchy 



Photographed from life by F. H. Herrick. Courtesy alto of G. P. Putnam's Sons. 



