3 46 
Yellow Wagtail (MotaciUa flava) 
This Old World species has become well 
established as a breeding species in Alaska 
(Gabrielson and Lincoln, 1959:692) and mi- 
grates back and forth from the Asian mainland. 
Pelagic observations are to be expected in the 
migration season, but it is somewhat startling 
to make three such observations in early Au- 
gust (August 7, 10, and 13) and in such a 
pattern as to imply that the birds make little 
or no effort to move along shore to the point 
closest to Siberia before flying out over the 
sea (Fig. 10). 
To my knowledge, no other authors have 
reported this species from offshore. 
Water Pipit (Anthus spinoktta) 
The single doubtful pelagic observation of 
the Water Pipit is difficult to evaluate (Fig. 
10). In view of the doubt which exists as to 
its identity, it is futile to speculate on the 
significance of the observation. 
REFERENCES 
Alexander, H. G, 1935. The movements of 
sea birds. Brit. Birds 29:298-299. 
Belopolski, L. O. 1957. Ecology of Sea Col- 
ony Birds of the Barents Sea. Akad. Nauk 
USSR. 460 pp. [Translated from Russian 
by R. Ettinger and C. Salzmann, Israel Prog, 
for Sci. TransL, Off. Tech. Serv., U. S. Dept. 
Comm., Washington, D.C.] 
Creager, J. S., and Dean A. McManus. 
1961. Preliminary Investigations of the Ma- 
rine Geology of the Southeastern Chukchi 
Sea. Dept. Oceanogr., Univ. Washington, 
Tech. Rept. 68. 46 pp. 
Fay, F. EL, and T. J. Cade. 1959. An ecologi- 
cal analysis of the avifauna of St. Lawrence 
Island, Alaska. Univ. Calif. Publ. Zool. 
63(2) : 7 3 — 1 50. 
Fleming, R. H. and Staff, i960. Second 
Oceanographic Survey of the Chukchi Sea, 
26 July to 28 August I960. Preliminary 
Report of Brown Bear cruise 268. 9 pp. 
and Staff. 1961. Physical and Chemi- 
cal Data for the Eastern Chukchi and North- 
ern Bering Seas. Dept. Oceanogr., Univ. 
Washington, Tech. Rept. 69. 162 pp. 
PACIFIC SCIENCE, Vol. XXI, July 1967 
and D. Heggarty. 1962. Recovery of 
Drift Bottles Released in the Southeastern 
Chukchi Sea and Northern Bering Sea. Dept. 
Oceanogr., Univ. Washington, Tech. Rept. 
70. 18 pp. 
Gabrielson, I. N., and F. C. Lincoln. 1959. 
Birds of Alaska. The Stackpole Company, 
Harrisburg, and the Wildlife Management 
Inst, Washington, D.C. 922 pp. 
Grinnell, J. 1900. Birds of the Kotzebue 
Sound region, Alaska. Pacific Coast Avi- j 
fauna 1:1-80. 
Harrison, C. J. O. 1955. Ornithological ob- 
servations from Lista. Sterna 29:101-131. 
Jacques, F. L. 1930. Water birds observed i 
on the Arctic Ocean and the Bering Sea in 
1928. Auk 47:353-366. 
Kuroda, N. I960. Analysis of sea bird distri- 
bution in the northwest Pacific Ocean. Pa- j 
cific Sci. 14:55-67. 
Salomonsen, F. 1944. The Atlantic alcidae. 
The seasonal and geographic variation of : 
the auks inhabiting the Atlantic Ocean and I 
the adjacent waters. Goteborgs Kungl. 
Vetenskaps-och Yitterhets-Samhalles Hand- | 
linger, Sjatte Foljden, Sen B. 3, 5:1-138. ! 
[Not seen.] 
Shuntov, V. P. 1961. Migration and distri- 
bution of marine birds in southeastern Ber- 
ing Sea during spring-summer season. [In j 
Russian.] Zoologicheskii Zurnal 40(7): 
1058-1069. 
Sparks, A. K., and W. T. Pereyra. I960. 
Annual Report on Benthic Marine Inverte- 
brates of the Chukchi Sea. Project Chariot, j 
June 1, I960. Dept. Oceanogr., Univ. ! 
Washington. 59 pp. 
Storer, R. W. 1952. A comparison of varia- [ 
tion, behavior, and evolution in the sea bird j 
genera Uria and Ceppbus . Univ. Calif. Publ. ' 
Zool. 52(2) : 121— 222. 
Swartz, L. G. 1966. Sea-cliff birds. Chap. 
23, pp. 611-678. In: Environment of the 
Cape Thompson Region, Alaska. U. S. ; 
Atomic Energy Commission, Oak Ridge. 
(pne-481, Fed. Clearing-house for Sci. and 
Tech. Inf.) 
Tuck, L. M. I960. The Murres. Queen’s j 
Printer, Ottawa. 260 pp. 
Vaughan, H. R. H. 1937. Flight speed of 
