8 BULLETIN 292, TJ. S. DEPARTMENT OF AGRICULTURE. 
the Eastern Hemisphere, where it has been noted to latitude 83°, 
north of Spitsbergen, but though recorded during the breeding season 
at numerous places from the eastern coast of Greenland to north- 
eastern Siberia, there are few if any actual breeding records, except 
on the islands off the northern coast of eastern Siberia. 
Winter range. — Actual winter records are almost lacking. The 
species has been taken south to Cape York, in Australia, Walfisch 
Bay in southern Africa, and Callao Bay in Peru. It seems probable 
that the regular winter home lies south of the Equator and that indi- 
viduals recorded with more or less certainty as having occurred in 
winter on the Orkneys, off the coast of Massachusetts, and on the 
California coast are stragglers or belated migrants. 
Migration range. — During spring and fall the pomarine jaeger occurs 
as a migrant off both coasts of the United States. It is not rare at 
either season, but is much more common in fall, when it continues 
passing the coast of Massachusetts and Long Island Sound until 
November. As is the case with many other water birds, this species 
is fairly common south to the eastern end of Long Island, then as the 
coast turns westward, the birds continue southward out to sea and are 
unknown along the coast of the rest of North America or anywhere 
on the eastern coast of South America. Stragglers have twice been 
taken on the coast of New Jersey at Long Beach (Scott) and Anda- 
lusia (Vansciver). On the California coast the species is a rare mi- 
grant in spring and is common, at least near Monterey, from August 
to October, but it is not recorded along the coast between California 
and Peru. 
In the interior the pomarine jaeger is rare, but is more than a casual 
visitor to the lakes of Mackenzie. It was taken near Fremont, Nebr., 
in May, 1873 (Aughey), and at North Platte, Nebr., November 11, 
1895 (Barnum). 
Spring migration. — Dates of spring migration in the United States 
are almost lacking. The birds are said to pass the New England 
coast in May, but if so, the migration must be quite rapid, for the 
first arrived June 10, 1823, at Igloolik (Kichardson), 2,000 miles 
north of Massachusetts. Dates of arrival at Point Barrow, Alaska, 
latitude 71°, are June 24, 1882, June 6, 1883 (Murdoch), and May 23, 
1898 (Stone). A straggler was taken near Detroit, Mich., May 30, 
1879 (Collins). 
Eggs have been recorded at Cape Bathurst, Mackenzie, June 20, 
1901 (Thayer); Cape Lisburne, Alaska, June 10, 1885 (Thayer); and 
Point Barrow, Alaska, June 24, 1898 (Stone). 
Fall migration. — The return movement begins so early that before 
the young are out of the nest fall migrants are appearing many 
hundred miles south of the breeding grounds. These early birds 
must, of course, be those which did not nest or which lost their eggs 
