100 
Lieut. C. H. T. Whitehead on the 
of many species that winter in the plains. Of the total 
number of 336 species which the list contains, 317 were 
found in Kohat, the remaining 19 were met with only in 
the Kurram Valley. Considered together, therefore, the 
single paper will be found to be of greater scientific value 
than if the two districts had been separately treated, and 
Mr. Whitehead deserves much credit for the excellent piece 
of work which he has accomplished. 
II.— Preface. 
By C. H. T. Whitehead. 
Major Magrath does not take any credit for his own work. 
Before I even started he had made a fair list of the birds of 
Kohat, and it was his enthusiasm that infected me. All that 
I have done is to somewhat amplify this list and add a little 
to the notes. The paper should have been written by him, 
but he insisted on my doing so, and has now most kindly 
gone carefully through it, making many necessary corrections 
and alterations and entirely rewriting the account of the 
Bulbuls of the genus Molpastes, the hybrid forms of which 
he was first to observe in Kohat. 
Much interesting information was kindly contributed by 
Mr. D. Donald, C.I.E., the Political Officer and Commandant 
of the Border Military Police and Samana Rifles, which his 
long residence in Kohat (some 18 years), his frequent tours 
in the district, the interest he takes in birds generally, and 
in the Accipitrines in particular, and his great reputation as 
a falconer, render of especial value. 
Specimens of most of the Passerine and of a large number 
of the remaining birds included in this paper were shot 
and carefully compared with Oates and Blanford's excellent 
descriptions, measurements and points of difference, if any, 
being always recorded, but only in the case of their not 
corresponding or of their being of special interest were skins 
made, for time did not permit of more. These skins are now 
in the British Museum and are those referred to in the paper. 
Amongst them will be found melanistic varieties of several 
species (Lanius lahtora } Passer dbmesticus , Anthus similis , 
