151 Mr. H. Seebohm on the Ornithology of Siberia. 
the Yalmal peninsula, near the margins of the lakes on the 
tundra, about lat. 674°. They were too late for eggs, but 
had young in down in their hands. The mosquitoes, how- 
ever, were so overwhelming that these adventurous ornitho- 
logists failed to bring home any specimens of this still un- 
known state of plumage. Capt. Feilden was more fortunate 
with the Knot. He brought home young in down ob- 
tained during the. late Arctic Expedition. This bird was 
breeding in lat. 824°, on the shores of the Polar basin, a little 
_to the north of Cape Union; and the young in down were 
obtained on the 30th of July. It was also breeding on both 
shores of the channel at Thank-God Harbour and ee 
Bay, in lat. 812°. 
TRINGA ALPINA, Linn. 
I saw nothing of the Dunlin until the 14th of July, when 
I shot a couple of males in lat. 69°; and four days later I shot 
a male and female in lat. 713°. With these birds were young 
in down. I am indebted to my friend Mr. Charles Murray 
Adamson, of Newcastle, who has paid great attention for 
many years to the changes in the plumage of the Waders, for 
pointing out to me the interesting fact that these birds are 
all moulting nearly the whole of their primaries at once, to 
such an extent as to incapacitate them for extended flight, 
and at a much earlier period than is the case in this country. 
Mr. Adamson suggests that in the high latitudes, where the 
summer is so short, the parent birds probably migrate with 
their young, instead of a core later, as is usually observed 
in this country, Heligoland, &c. "To enable them to do so 
the autumn moult must take place at an earlier date. 
Macuetes puenax (Linn.). 
The Ruff was a common bird in the valley of the Yen-e-say’. 
I shot the first on migration on the 9th of June on the 
Arctic circle ; and afterwards I met with them wherever there 
was long grass in the swamps of the tundra as far north as 
I travelled. 
ActitiIs HypoLeuca (Linn.). 
I shot the first Common Aen on the 12th of June, 
[66] 
