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 ceruginosus , 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 urhica 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 country (P. Z. S. 1858, p. 356). A 
Martin, from Northern China, comes between this and H. urhica 
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 sihiricus , 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 (see p. 90 of this Number).— Ed. 
