170 POLIOHIERAX INSIGNIS. 



same bird from Captain Feilden, described them as belonging to an unknown 

 species, and bestowed the title of Lithofalco feildeni. 



To Captain Feilden we are indebted for valuable remarks on the various 

 phases of plumage this Falcon assumes, and for a full description of its 

 habits (/. c). 



Mr. Oates has also added to our knowledge of the species. 



From a zoo-geographical point of view, the occurrence of this bird in 

 Burma is of the highest interest. It belongs to a genus the type and only 

 other member of which occurs in Africa, P. semitorqiiatus (Smith). 



At present, P. insignis is only known as an inhabitant of North Burma. 



