CRESTED HAWK. 
In the Nov. Zool., Vol. VIII., p. 378-9, 1901, Hartert discussed the races 
and admitted the following : 
Baza suhcristata suhcristata Govld .. Northern Australia. Four specimens 
from Queensland. 
“ Baza suhcristata reinwardti Muller . . Southern Moluccas, New Guinea, Aru, 
Key, Salwatty and Lesser Sunda 
Islands, from Sumba and Timor 
to Dammer and Djampea. 
“ The shorter wing of this form (difference about 2 to 3 cm.) is apparently 
the only constant character by which to separate the two forms. 
“ Baza suhcristata hismarcTci Sharpe . . New Ireland, Duke of York Islands, 
New Hanover. 
“ Abdomen with the ground-colour white, under wing-coverts very 
light. Wing about as long as in the Australian form. 
“ Baza suhcristata gurneyi Ramsay , . Solomons Island. 
“ Like hismarcki, but smaller.” 
“ Baza suhcristata rufa Schlegel . . Northern Moluccas only, including 
Obi Major. 
“ At once distinguishable by the dark rufous appearance of the under- 
surface and dark rufous under-wing and under-tail coverts. The Celebesian 
and other more western forms belong to different species.” 
The preceding will indicate that when island forms are under discussion, 
minute differences are accepted for subspecific differentiation, but when 
mainland forms are concerned huge differences are minimised : that is, a 
couple of miles of sea are a sufficient barrier when five hundred miles of land 
may not be. As an absolute matter of fact, the reverse is often the case ; 
a few miles may constitute an absolute barrier on land while hundreds of sea 
miles do not. 
However, in the Nov. Zool., Vol. XX., 1913, p. 305, Streseman further 
studied the forms of Baza suhcristata (Gould). He divided them into tiiree 
sub-groups, but this was simply an artificial grouping for cabinet purposes 
and did not express any genetic relationship. The forms admitted by 
Streseman are : 
B. s. suhcristata Gould . . 
B. s. timorlaoensis A. B. Meyer 
B. s. 'pallida nov. 
B. s. reinwardtii Muller . . 
I B. s. 'megala nov. 
B. s. megala > reinwardtii 
Australia. 
Timorlant to Lombok ; Djampea, 
Bonerate (?), Kalidupa. 
Kei and Sudost Island. 
Ceram, Ambon, Burn. 
Fergusson Island. 
British New Guinea. 
219 
