Mr. R. Swinhoe's Ornithological Notes made at Chefoo. 443 
May by a birdcatcher in the “ Bois de Boulogne." A Pied- 
Wagtail is figured in the MS. Illustrations as “ Ho Yatcheo ” 
(River-Magpie). 
34. Pale-eyebrowed Thrush. Turdus obscurus, Gmel. 
At Amoy I procured two sizes, large and small, of this 
winter-wandering Thrush, which strays at that season as far 
south as Malacca. At Chefoo I procured in May a male of 
each size. This seems to be the species given by Pallas 
(Zoograph. Rosso-Asiat. i. p. 457) as Turdus pattens , and 
described by him only in the winter plumage, though he 
states positively that it passes the summer in the copses 
around the rivers of Dauria, and in the mountain-woods 
around Lake Baikal. Temminck identified certain specimens 
procured in Europe with Pallas's bird; then at a later date 
he confounded T. p aliens with his T. daulias of Japan. In 
Europe, I presume, they have only occurred in their winter 
plumage, as they do in Malacca (l 7 . rufulus , Eyton). In 
spring the head and neck become blackish grey, the chin and 
upwards to lower eyelid and the superciliary mark being 
white, the rest of the plumage unaltered. The present is a 
wandering species; and its occurrence in Europe is what one 
might expect; whereas T. daulias is only a local migrant. 
There is as much as an inch difference in the comparative 
length of the two races of T. obscurus , and sometimes even 
more; but I can find no corresponding difference of plumage 
to warrant their separation. The light tips to the greater 
wing-coverts, and the white tips to the outer tail-feathers, are 
by no means constant. Sometimes both are plainly present; 
at others, one set, or often both, are entirely absent. 
35. Siberian Thrush. Turdus sibiricus } Pall. 
For some days towards the end of May these Thrushes 
were about our hills, apparently bound north. On the 22nd 
Mr. Carles shot three males, all sexually well advanced. I 
took the following note on a fresh specimen:— 
“ d. Length 8*5. Wing 4*76; first quill *75 long, second 
*18 shorter than the third and longest, 1*7 short of tail-tip, 
1-5 longer than tertiaries. Tail 3-5, of twelve nearly equal 
