246 



VERTEBRATES I BIRDS. 



When a fish comes within reach, it instantly transfixes 

 it with its sharp bill, and afterwards swallows it whole. 



Fig. 129. 



Great Blue Heron, A. herodias, Linn. 



It also feeds upon reptiles, mice, and young birds. When 

 wounded, it at once prepares for defence, and the dog or 

 man who comes within reach is sure to receive a severe 



