PEEFACE. 



This volume contains a complete account of all the species of 

 Diurnal Birds of Prey known at present, 377 in number, of which 

 only about twenty-five are desiderata in the Collection of the British 

 Museum. In the year 1848, when the Catalogue of Accipitres 

 prepared by the late Mr. George Robert Gray was published by 

 order of the Trustees, 198 species were contained in the Museum. 



This Catalogue has been prepared by Mr. R. B. Sharpe, one 

 of the Senior Assistants in the Department of Zoology. 



J. E. GRAY. 



British Museum, 

 June 1, 1874, 



