The Making of Species 



terminates rather abruptly on the hind neck, and 

 is not extended along the back, as is the case 

 with M. intermedius 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. intermedius 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 M. 

 intermedius 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 (Ibis, 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 inter 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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