the Lower Yangtse Basin. 317 



chow Bay, and on the left to the Yellow Sea. The delta on 

 the south is what is usually known as the " Shanghai country/' 

 and most of the birds recorded as obtained at Shanghai have 

 been shot within its limits, though some of them may have 

 been killed a hundred miles or more from Shanghai itself. 



By the subjoined list it will be seen that 359 species o£ 

 birds have been recorded as occurring in the Lower Yangtse 

 Basin. These may be classified as follows : — 



Breeders : 



Kesident 90 



Summer Visitants 52 



— 142 

 Non-Breeders : 



Winter Visitants 101 



Passing on Migration 97 



Stray Birds 11 



Doubtful 8 



217 



Total 359 



Of the 142 species that breed in the district, it will, upon 

 examination, be found that the greater number are Ori- 

 ental, thus supporting Mr. Seebohm's conclusion (P. Z. S. 1890, 

 p; 345) that the boundary line between the Palaearctic and 

 Oriental regions in China should be drawn not further south 

 than the watershed between the Hwang-Ho and the Yangtse. 

 The Yangtse valley therefore is not far from the southern 

 limit of the Palsearctic region, and its avifauna consists 

 largely of genera and species from both regions. 



Among the distinctly Oriental species which breed on the 

 Yangtse, some, such as Oriolus diffusus, Buchanga atra, 

 B. leucugenys, Chibia hottentotta, Eurystomus calonyx, Hal- 

 cyon pileatus, and Coccystes coromandus, extend their breed- 

 ing-range much further north ; others, such as Campophaga 

 melanoptera, Ceryle rudis, Haliastur indus, Nettapus coro- 

 mandelianus, and Hydrophasianus chirurgus, apparently make 

 the Yangtse basin their northern limit. 



Of the resident birds, four species {Cisticola cisticola and 

 three Cettias) are abundant in the breeding-season, but 



SER. VI. VOL. III. 2 



