WHISTLING DUCK. 85 



Biological Survey found the wliistling- swan breeding at Becharof 

 Lake in southern Alaska, latitude 58°, this being the most southern 

 breeding record. Thence it breeds along the Yukon, about Kotzebue 

 Sound, and probabh^ to Point Barrow. Though found on the Asiatic 

 side at Bering Island, as yet there is no record of its breeding in 

 that country. Accidental once in Scotland and once in the Bermudas. 



Winte?' range. — Prol)abl3^ about as common on Chesapeake Bay 

 during the winter as in any part of its winter home; many pass to the 

 coast of North Carolina and a few to Florida. It winters regularly 

 north to New Jersey, and during the winter of 1877-78, one remained 

 on Nantucket Island, Massachusetts, in which State the species was 

 common when the first settlers arrived, but is now so rare that it seems 

 to have been recorded onl}^ four times in the last thirty years. It 

 never was common in the interior of North America, but a few occur 

 locally in winter from southern Indiana and Illinois to the Gulf 

 coast of Louisiana and Texas. It is more common along the Pacitic 

 coast, and winters regularly from southern British Columbia to south- 

 ern California (Ventura County), and probabl}^ one was seen at San 

 Rafael, Lower California. The species is recorded as wintering on 

 Near Island, Alaska, far north of the usual winter home. One was 

 seen January 18, 1904:, near Colonia Diaz, Chihuahua, and some years 

 earlier one was killed in the winter at Silao, Guanajuato. 



Syring migration. — The northward movement begins in March, as 

 shown by the following dates of arrival: Erie, Pa., March 11, 1897; 

 Williamsport, Pa., March 20, 1905; Deerfield, N. Y., March 13, 1890; 

 Lockport, N. Y., March 20, 1886; Detroit, Mich., March 14, 1905; 

 Delavan, Wis., April 1, 1895, March 31, 1896; Heron Lake, Minn., 

 April 6, 1886, March 31, 189-1; Elk River, Minn., April 8, 1886; Fort 

 Collins, Colo., March 16, 1895; Jordan River, Utah, March 10, 1850; 

 St. Michael, Alaska, April 27, 1878; Kowak River, Alaska, May 11, 

 1899; Fort Simpson, Mackenzie, May 5, 1904; Fort Anderson, 

 Mackenzie, May 18, 1865, and Melville Island, May 31, 1820. One 

 seen near St. John, New Brunswick, April 8, 1882, seems to be the 

 only spring record on the Atlantic coast north of Long Island for the 

 last fifty years. 



Since (ho species breeds to the westward of Hudson Bay and win- 

 ters commonly on Chesapeake Bay and 3'et is practically unknown in 

 spring in northeastern North America, it follows that its route in 

 spring migration trends to the northwestward, and it is evident why 

 at this season the species is not uncommon in the region of the Great 

 Lakes and Manitoba. 



Most whistling swans leave the United States from the middle to the 

 latter part of April; unusually late birds were seen near Baltimore 

 May 4, 1905, at Williamsport, Pa., May 3<i, 1901, while noubrecders 

 have spent the summer on Lake Malheur, Oregon. 



