AN ATTSTRALTAX BIRD BOOK. 91 



190 Glossy Cockatoo (Leach Black), C. viridis, E.A., 



S.A. Small flocks, r. ftmSer 19.5 



Glossy greenish-black; deep vermilion-red on tail; f., no 

 vermilion on tail. Sheoak (Gasuarina) seeds. 

 1 191*Gang-gang Cockatoo (Red - crowned), Red-crowned 

 1 Parrot (e), Galah (e), Callocephalum galeatum, 



S.Q., N.S.W., v., T., King Is. v.r. forest 13.5 



Head, crest fine scarlet; rest slate-gray barred grayish- 

 green; wings tinged green; under tinged red; f., head, 

 crest gray. Eucalypt seeds. 



5 192 White Cockatoo (Sulphur-crested), Gacatua galerita, 

 17 A., T., King Is. 



Nom. Flocks, v.c. timher. open plains 20 

 White; crest, under wing, portion of tail sulphur-yellow; 

 f., Sim. Seeds, grain, native bread, bulbous roots, 

 grasshoppers' eggs. Screech. 

 193*Pink Cockatoo (Leadbeater), Major Mitchell, C. Icad- 



'bcateri. Int. A. Nora. r. lofty gums 16 



"Most beautiful and elegant" cockatoo; white; forehead, 

 neck, under wing, middle abdomen, base of tail sal- 

 mon pink becoming deeper under wing; crest crimson, 

 yellow, white; eyes black; f., yellow in crest brighter; 

 eyes reddish-brown. Plaintive cry. 



and other migratory birds. For this reason the birds may be 

 absent from a district for some years, and then suddenly appear 

 again in great numbers. 



Cockatoos are almost confined to the Australian region. This 

 includes the islands north-west of Australia out to Wallace's line, 

 passing between Celebes and the Philippine Islands, Celebes and 

 Borneo, and between the small islands of Lombok and Bali, east 

 of Java. These islands, though but fifteen miles apart, "differ 

 far more from each other in their birds and quadrupeds than do 

 England and Japan. The birds of the one are extremely unlike 

 those of the other." Another authority says that the faunas of 

 Bali and Lombok are more unlike than those of South America 

 and Africa. Bali has Woodpeckers, Barbets, Bulbuls, and Black 

 and White Magpie-Robins, none of which is found in Lombok, 

 where we find Screaming (Cockatoos, Friar-birds, and other Honey- 

 eaters, and the strange mound-building Megapodes and numerous 

 other remarkable birds. This narrow strait is over 1000 fathoms 

 in depth, and is probably one of the most ancient and most per- 

 manent dividing lines in the world. Instead of being united to 

 Asia, it is probable that Australia has been more recently joined 

 to New Zealand, South America, and South Africa. Only one 

 Cockatoo transgresses Wallace's line to the west, and that is 

 found in the Philippine Islands; evidently it has spread there 

 from the adjacent part of the Australian region. 



The sombre, slow-fiying Black Cockatoo is the largest of all 

 Cockatoos. It is seen fairly often in small companies, especi- 

 ally on wattles and eucalypts, the wood of which it tears to pieces 



