98 Capt. Blakiston on the Ornithology of Northern Japan. 



stock of knowledge on the subject. He has kindly examined the 

 specimens on which my list was founded, and the result is that 

 I have to acknowledge certain errors in it, consequent on a very 

 limited knowledge of oriental ornithology. At the same time, 

 however, I am glad to be able to introduce some more species 

 of birds to the fauna of Northern Japan. 



Following the order of the list at — 



Page 314. The paragraph on Buteo japonicus (which name 

 crept in on account of one of my Chinese specimens being of 

 that species) refers to Circus aruginosus, the Marsh Harrier of 

 Europe. The specimen, which is from Hakodadi, Mr. J. H. 

 Gurney considers to be an adult female, having the light mark- 

 ings on the secondaries, the feathers of the throat, and upper 

 part of the breast, paler than is usual. Thus at p. 316, the 

 note concerning Harriers must be taken as referring to other 

 species, and will read as it should be, if the words " and some," 

 in line 11, are struck out. 



P. 316. Hirundo urbica must be omitted. The specimen 

 referred to, shot in July (not March), on close comparison, is 

 found to differ in having the whole upper parts reflecting purple, 

 in place of blue-green ; the chin, close to the bill, sooty ; the 

 under-wing plumes dusky, in place of white ; and in the shafts of 

 the breast, belly, and rump feathers being brown, and showing 

 as thin longitudinal streaks on the white. It seems to agree 

 very nearly with Mr. Gould's specimen of Chelidon cashmiriensis, 

 described by him from that countiy (P. Z. S. 1858, p. 356). A 

 Martin, from Northern China, comes between this and H. urbica 

 of Europe*. 



P. 318. Locustella ochotensis (Middend.), as identified by Mr. 

 Swinhoe, must stand in place of Calamoherpe cantillans. 



P. 319. With regard to the Thrushes, I must reduce my 

 specimens of Turdus cardis by two, which Mr. Swinhoe considers 

 to be the young of Turdus sibiricus, Pallas. These were shot by 

 myself, from among a number, in a small pine-wood near Hako- 

 dadi, in August. The most striking features which distinguish 

 the young of this species from that of T. cardis are the light- 



* Capt. Blakiston's Japanese Martin has since been named by Mr. 

 Swinhoe Chelidon blakistoni (seep. 90 of this Number). — Ed, 



