12 NORTH AMERICAN: SHOREBIRDS. 
that reach the Lesser Antilles by a long flight over the Atlantic Ocean 
are reported as emaciated. ok ae t 
Shorebirds present some jdideynerusios of migration that are worthy 
of mention. The sharp-tailed sandpiper (Pisobia ‘aurita) breeds. 
on the northern coast of Siberia, and in fall migration crosses to: 
‘ Alaska and then back again to Asia and by way of Japan and China 
reaches its winter home in Australia. -The most eastern point of its 
range in Alaska—Norton Sound—is some 500 miles east of its summer 
home in Siberia. As the species is not known in Alaska in spring, 
its migration route is probably elliptical, and the northern route 
in spring is probably across the mainland of. Asia. 
Some individuals of the marbled. godwit' (Limosa fedo) has a 
unique migration route. From their breeding. grounds in North 
Dakota and Saskatchewan some of : these birds formerly migrated 
almost directly east more than a thousand, miles. to the Atlantic 
coast, while others traveled a ‘thousand miles due west to the coast 
of southern Alaska. 
Some birds breed in the Western Hemisphere and ‘winter in the 
Eastern. For example, the Pacific godwit, (Limosa lapponica baueri) 
breeds on the western shores of Alaska, whence it passes by way of the 
Commander Islands, Japan, and China to its winter home in Australia. 
The bristle-thighed curlew (Numenius tahitiensis) follows a somewhat 
similar route. The wandering tattler (Heteractitis incanus) breeds 
in Alaska and some individuals pass in fall migration to Asia, Hawaii, 
and Oceania, while others continue down ne American coast to the 
Galapagos. 
A long migration route from the eastern ae of North America is 
followed by the ringed plover (4 gialttis hiaticula). Some individuals 
breed in Greenland and still farther west in Ellesmere Land and 
about Cumberland Sound, whence they pass east and. southeast to 
the European coast and. winter from ane Mediterranean to southern 
Africa. 
Both these last routes are used by. th fusnatone pees anter- 
pres). The individuals that breed in Greenland and Ellesmere Land 
migrate southeast to Europe and Africa, while those that breed. in 
Alaska, even as far east as Point. Barrow, migrate to the west and 
southwest to winter in Asia and Oceania. 
Another migration route, probably unique, is that taken by the 
considerable numbers of the mountain plover (Podasocys.montanus) 
that winter in the Sacramento.:Valley and elsewhere in California. 
The farthest west and north that the species is known to breed is 
Montana; hence whether. the California, wintering birds come from 
Montana or from the more southern districts, they apparently form 
an exception to the general rule that North American birds do not 
winter farther west than they breed. 
Though many of. the shorebirds, breeding in North danariea ee 
in the southern part of South America, none of them breed in their 
