396 THE BIRDS OF ATJSTEALIA 



Genus Tropidorkynchus. 

 Bill longer than rest of head, curved, eulmen with prominent 

 ridge and a large hump on the base. No bristles. Nostrils oval 

 or round, open. Parts of head bare. First primary very long. 

 Tail square. Colour dull-brown. Australia to New Guinea and 

 adjacent islands. 



Key to the Species. 



Whole crown, sides of head and neck all ronnd, bare. T. corniculatus. 



Centre of crown covered with feathers. 



Sides of neck covered with feathers. T. argenticeps. 



Sides of neck bare. T. buceroides. 



All of a general brown colour, lighter below. The feathers 

 of the fore-neck and chest are all very lanceolate. 



The Friar-l)ird, T. corniculatus. — South Australia, Victoria. New South 

 Wales, and Queensland. Wing 5.7 to 6.2 inches. 



The SHvery-crowned Friar-Tjird, T. argenticeps. — North-west Australia to 

 Northern Queensland. Wing 5 to 5.4 inches. 



The Helmeted Friar-bird, T. huceroides. — Gulf of Carpentaria and North- 

 east Queensland. Wing 6 inches. 



These birds have a loud harsh note and frequently go in 

 companies, frequenting the forest trees that may be in blossom. 

 Their suspended open nests are usually built of grass; the Koel 

 Cuckoos frequently deposit their eggs in their nests. Their eggs 

 are pink in colour with darker markings, those of T. argenticeps 

 being the palest in colour. 



Genus Philemon. 

 Like preceding but without any hump on the eulmen. 

 Moluccas, Timor, New Guinea, New Britain, New Caledonia and 

 Australia. 



The Yellow-throated Friar-bird. 



Philemon citreogularis. 



Eastern States with Victoria, South Australia, and North-west 

 Australia. 



Upper surface light brown; under parts brownish -white; the upijer 

 throat, abdomen, and under tail-coverts almost white; the cheeks only 



