THE KOEL AND ITS ALLIES 287 



are locally distributed. The four species 

 mentioned above are Partial 



tion^ ^^^^^'^^^^'^' "^^^^ expression has a 



specific application in Indian 

 Ornithology. Migratory birds have been 

 placed in three classes — (1) The Ti^ue 

 migi'antff, — those palsearctic species that 

 chiefly breed beyond Indian limits ; (2) 

 Migrants, — those Palsearctic species that 

 chiefly breed in the Himalayas ; and (3) 

 JPartial migrants, — those that confine their 

 movements in India. It is to the last class 

 that the cuckoos described here belous;, 

 but the Hawk-cuckoo or the Papiya. 

 {Sierococcyx varius) appears to be a resi- 

 dent bird throughout its range except in 

 Ceylon, where it goes in November and 

 whence it comes back to the continent 

 with the approach of summer. It is found 

 everywhere in India up to Kajputana in 

 the west and East Bengal in the east. 

 On the one hand, its range does not 

 reach the Punjab and Sind, on the other, 

 Assam and Burma. Instances of its occur- 



