38 NOKTH AMERICAN SHOKEBIKDS. 



extending from near the mouth of the Mackenzie east to the southern 

 end of Baffin Land. 



Winter range. — Few species of shorebirds have so many records 

 for Patagonia as the white-rumped, and this is also one of the species 

 that is erroneously said to breed in the Southern Hemisphere. It 

 winters abundantly from Paraguay and Argentina to the Falkland 

 Islands (Sclater and Salvin) and the southern coast of Tierra del 

 Fuego (Schalow). It is rare or casual on the coast of Chile (Gay) 

 and unknown on the rest of the western coast of South America, 

 except one seen at Chorillos, Peru (Taczanowski) , and one taken 

 October 12, 1864, near Huanaracama, Peru (specimen in United 

 States National Museum) . 



Migration range. — During migration the white-rumped sandpiper 

 is common along the whole eastern coast of South America, in the 

 West Indies, and in the United States east of the Rocky Mountains. 

 The western edge of the migration route extends from the upper 

 Mackenzie through western Saskatchewan and eastern Colorado to 

 the coast of southern Texas and then turns east to northern Yucatan 

 and the island of Trinidad. The species is only an accidental visi- 

 tant to Mexico (Salvin), Central America, and the whole of north- 

 western South America. Accidental once in California (Bryant) 

 and several times in Europe. 



Spring migration. — The species arrives in Cuba in April (Gundlach) 

 and has been recorded in northern Yucatan April 15 (Salvin). Nearly 

 all the dates of arrival in the United States are in May, from Florida 

 to Maine and from Massachusetts to Colorado. The first was seen at 

 Indian Head, Saskatchewan, May 9, 1892 (Macoun); Fort Chipew- 

 yan, Alberta, May 30, 1893 (Russell); Fort Resolution, Mackenzie, 

 May 19, 1860 (Kennicott) ; Cape Fullerton, Hudson Bay, May 22, 1904 

 (Eifrig). There are indications that the larger number pass north in 

 spring by way of the Mississippi Valley and return in fall along the- 

 Atlantic coast; but some individuals are found on the Atlantic coast 

 in spring, though rare north of Virginia, and a few occur in the eastern 

 Mississippi Valley in fall. The most surprising feature of this bird's 

 migration is its late stay in spring south of its breeding grounds. 

 Near Cape Horn, South America, it was abundant the winter of 

 1882-83 and remained until March?, 1883 (Oustalet). It remains in 

 southeastern Argentina until late April (Holland), and a single speci- 

 men was taken at Colonia, Uruguay, in June (Sharpe). The species 

 remains regularly in Brazil until May (Pelzebi); one was taken on 

 Inagua. Bahamas, May 27, 1879 (Cory); Amelia Island, Florida, 

 May 30, 1906 (Worthington) ; Erie, Pa., June 4, 1875 (Sennett); 

 Stafford County, Kans., June 6, 1907 (Peabody); Waukegan, 111., 

 June 9, 1876 (Nelson); Toronto, Ontario, June 21, 1898 (Nash); and 

 at Indian Head, Saskatchewan, the last did not leave for the north 

 until July 1, 1892 (Macoun). 



