The Making of Species 
terminates rather abruptly on the hind neck, and 
is not extended along the back, as is the case 
with WZ. cntermedius and M. bengalensis. On the 
other hand, as in the two last species, the ear 
coverts are chocolate. Furthermore, I may add 
—although I attach little importance to this— 
that the eggs of the Lucknow bird which I have 
seen are, without exception, far smaller than my 
eggs of genuine M/. zntermedius from the Punjab. 
My own opinion is that the Lucknow race is the 
result of a hybridisation between the other three 
species.” 
Further, in Bannu, Mr D. Donald saw &. 
entermedius and M. leucogenys paired at the same 
nest. That gentleman could not possibly be 
mistaken on the point, as the latter species has 
white cheeks and yellow under tail-coverts, while 
the cheeks of the former species are dark-coloured 
and the patch of feathers under the tail is red. 
Similarly, Whitehead and Magrath, writing of 
the birds of the Kurram Valley (/d¢s, January 
1909), record that the former shot no fewer than 
twelve bulbuls, which undoubtedly appear to be 
hybrids between these two species. As these 
hybrids differ considerably zzter se, there seems 
no room for doubt that they breed with one 
another and with the parent species. 
Wallace’s third statement, that if the two sides 
of animals in a state of nature were alike, easy 
recognition would be impossible among numerous 
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