NEW SOUTH WALES 89 



2. The north and the south have their species 

 without sub-species : — 



2^ Masked Owl a^ a* a^ 



22 Fire-tail Finch b^ b=^ 

 The owl keeps to the long stretches of grass-land; 

 this species of finch to the forests of the coast. 

 They both have separate utility duties of high 

 economic value. Finches are of the type born 

 helpless, and with brilliant mouth parts to serve 

 as a guide to the parent when placing a grub in the 

 moutli. The nest is dark within. 



COASTAL DISTRIBUTION AND COASTAL 

 MIGRATION 

 (Plate 3, Fig. 85) 



In Map 1 we see that the coastal distribution of 

 New South Wales birds is divided in the vicinity 

 of Port Hacking. Map 37 gives the Top-Knot 

 Pigeon as an example of a species with a continuous 

 distribution over the two coastal sub-regions a, b, 

 Eastern Torressian, c, d, Eastern Bassian. So far 

 as d is concerned it is simply sporadic from c. 



A second direction of expansion is shown in the 

 dotted lines from "a" of map 37. This is the case 

 with the Pheasant Pigeon, and these two species 

 help to show the two principal lines of expansion 

 of the Australian birds from York Peninsula. In 

 the northern portion of this sub-regional division 



