NEW SOUTH WALES 91 



we find small forms of the southern species : e.g. 

 Sacred Kingfisher (Halcyon sanctus). 

 Red-browed Finch (Aegintha temporalis). 

 Blue Wren (Malurus cyanochlamys). 



There is a considerable over-lapping of species 

 between Port Hacking and the Clarence River 

 District. It is again clear that the further north 

 one gets from this line the smaller the birds are, 

 and the further south from it, the larger the same 

 species are. 



Coastal migration concerns the wonderful high- 

 ways of eastern birds passing from the State of 

 New South Wales into the State of Victoria. This 

 again is divided into the Coastal Plain, and into 

 the Valley of the Hawkesbury River between 

 Lakes Bathurst and George, and up the higher 

 waters of the Murrumbidgee, and across the water- 

 shed into the Snowy River. 



The birds unequally divide in the southern 

 Monara district, the smaller quantity ascending 

 over the pass into the low land country of Eastern 

 Croagingolong. Many coming south meet the 

 Shoalhaven River and ascend it. They then meet 

 the Gourock Range, keeping on the eastern skirt, 

 e.g. the White-browed Wood-Swallow (Artamus 

 superciliosus) arriving in October. 



