1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 429 



within the two races. On the other hand, as in many other birds, the 

 white ends to the tail-feathers are probably, on the whole, smaller in 

 the young birds than in the old ones. 



With these remarks in view, I shall now proceed to examine the ma- 

 terial before me. 



The first one is U. S. National Museum No. 110015, from Petro- 

 paulski, Kamtschatka, collected December 27, 1885. It is the eastern- 

 most example I have seen, and is a very pronounced slender-billed bird, 

 agreeing clusely with Blasius's fig. 2, pi. i. Its coloration exhibits the 

 maximum amount of white, as might be expected. 



Next eomes four birds collected by Mr. P. L. Jouy, at Fnsan, south- 

 ern extremity of Korea (latitude 35°), the southernmost locality, I think, 

 iu which specimens of this species ever have been taken (U. S. National 

 Museum, Nos. 114097-114100). They are all alike and very character- 

 istically slender-billed, belonging undoubtedly to macrorhynchos, both 

 on account of the shape and size of the bill and the width of the white 

 tail- band. From Norway I have four slender-billed birds, evidently 

 Siberian immigrants, collected near Bergen during the great invasion 

 in 1887* (U. S. National Museum, Nos. 113218-113222), which are in 

 every particular identical with the Korean examples. It would be ut 

 terly impossible to tell these birds apart were the labels removed, and 

 the uniformity of these eight specimens of so variable a species, and 

 from so distant localities, is truly astonishing. 



Finally, I have four specimens from Japan, collected by Mr. Jouy, 

 but as two of them are young birds which have not yet fully assumed 

 the adult plumage, they may safely be left out of the comparison. The 

 remaining two are U. S National Museum, No. 88701, $ , Fuji, July 2, 

 1882, a fully adult bird, just molted into a fresh plumage, possibly the 

 mother of the two young birds referred to, which were shot in the same 

 locality on the same day, and the other, No. 91392, $ , Tate-Yama, De- 

 cember 17, 1882. The latter is unquestionably a typically slender-billed 

 bird, very much like the one described from Kamtschatka, with a slightly 

 longer bill, the length of which exactly equals the average of the eight 

 specimens from Korea and Norway referred to above, while the amount 

 of white on the tail almost reaches the maximum. The bill is just a trifle 

 higher than that of the other slender-billed specimens (though not reach- 

 ing the maximum height of specimens measured by Blasius, e. g., his 



* I have seen only few notices of the 1867 migration. According to J. Collin, in his 

 " Biurag til Kundskaben oin Dantuarks Fuglefauna," the Nutcracker has never before 

 occurred, in such numbers in Denmark. Iu Norway the immigration was remarkable 

 both on account of the number of birds aud the extent of country covered, specimens 

 having been taken even north of Tromsce. Near Bergen about one hundred individ- 

 uals were killed during September, aud Mr. V. Storiu states that the bird appeared 

 in the vicinity of Troudhjem in vast numbers about the first of that mouth. Numerous 

 specimens were received from Rceraas, Guldal, (Erkedal, Rissen, and more northern 

 localities. (K. Norske Vid. Selsk. Skr. 18S6-'67, Trondhj., 1888, p. 52; Naturen, xn, 

 1888, p. 224.) 



