118 



AUSTRALIAN BIRD MAPS 



MAP 56 



Herons of the Derwent Estuary (Extreme south of 

 Australia). 



a. Reef Heron (Demigretta sacra). 



b. White-fronted Heron (Notophoyx novae hollan- 



diae). 

 Nankeen Night Heron (Nycticorax). 



c. Pacific Heron (N. pacificus). 



