3 68 



PRACTICAL ZOOLOGY 



FIG. 247. Belted kingfisher. (Photo, by Hegner.) 



and adults are all so much like their surroundings in color that 

 it is very difficult to see them. 



FiG. 248. Nighthawk sitting on her two eggs which were laid 

 on a pebbly hillside. (Photo, by Hegner.) 



