STRAW-NECKED IBIS. 
awarded three names in three years, three authors independently describing 
this peculiar endemic Australian form. 
I separated the North-western bird as a distinct subspecies on account 
of its smaller size, but I do not find this to be a constant character, though 
probably this is due to lack of series of adult birds. The fully-developed 
males of the first year appear to be smaller though not otherwise dissimilar, 
while younger birds have the crown of the head feathered. I suggest however 
that when longer series are received, the North-western species will merit 
reinstatement. 
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