The Making of Species 
FACING PAGE 
Bourvu FriAr-BirRD . F é F . 
Like most of the group to which it belongs, this honey-eater 
(Tropidorhynchus bouruensis) is a soberly coloured bird, but is 
noisy, active, and aggressive. 
By permission of Messrs Hutchinson & Co. 
Bouru ORIOLE : P ‘ ; é 
This ‘‘ mimicking” oriole (Oriolus bouruensis) is of the same 
tone of colour as its supposed model the Friar-bird of the same 
island. 
By pernvission of Messrs Hutchinson & Co. 
Kinc-Crow or Dronco ‘ : ‘ : 
This very conspicuous black bird (Dicrurus ater), ranging 
from Africa to China, is a striking feature of the landscape 
wherever it occurs. 
By permission of Messrs Hutchinson & Co. 
Dronco-Cuckoo : , , : : 
The fork of the tail in this bird is unique among cuckoos, but 
is nevertheless much less developed than in the supposed model, 
and may be an adaptation for evolutions in flight, as such tails 
usually appear to be. 
By permission of Messrs Hutchisson & Co. 
SHIKRA Hawk . ‘ 3 
The upper surface of the tail, not shown in this drawing, 
exactly corresponds with that of the cuckoo ‘‘ mimic,” 
By permission of Messrs Hutchinson & Co. 
Hawk-Cuckoo ‘ 
This species (Hverococcyx varius) is commonly known in India 
as the ‘' Brain-fever bird.” 
By permission of Messrs Hutchinson & Co 
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