WESTERN SANDPIPER. 47 
August 4 (Allen). ‘Specimens were taken: July 3, 1907, at Coronado 
de Terraba, Costa ‘Rica (Carriker), but these may have been non- 
breeders that had not made the northward. journey. . Young birds 
migrate about a month later, and it is probably these that-afford the 
following average dates: North River, Prince Edward Island, August 
8 (Bain); Long Island, New York, August 10 (Worthington); Béaver 
Pa.,; August 14 (Todd); Keokuk, Iowa, August’ 18 (Currier). 
The average date of the last one seen at Point Barrow, Alaska, is 
August 15, latest August 18, 1882 (Murdoch); Herschel Island, 
Yukon, August 2, 1894 (Russell); York Factory, Keewatin, August 
26, 1900 (Preble); Ottawa, average of the last one seen September 9, 
latest September 17, 1892 (White) ;: Lewiston, Me., October 17, 1900 
(Johnson); Ossining, N. Y., October 20, 1885 (Fisher); Washington, 
D. C., October 26, 1887 (Richmond), 
Western Sandpiper. Eréunetes mauri : Cabanis. 
‘Breeding range. .—The western sandpiper’s breeding range, as at 
present known, is a narrow strip along the northwestern coast of 
Alaska from the mouth of the Yukon (specimens in United States 
National Museum) to Cape Prince of Wales (Grinnell): 
Winter range. —Though breeding only on the northwest coast, this 
sandpiper is common in winter on the Atlantic coast from North 
Carolina (Bishop) to Florida (Scott). This long migration across the 
continent to the southeastward from the breeding grounds is very 
remarkable, and is not paralleled in the case of any other shorebird. 
It is, however, comparable with the migration of several species of 
ducks from the Mackenzie Valley to Chesapeake Bay. The species 
also winters from La Paz, Lower California (specimen in National 
Museum), to southern Mexico (Lawrence), Guatemala (Sharpe), Co- 
lombia (Ridgway), and Venezuela. (Robinson), and undoubtedly to 
the Lesser Antilles, but its distribution i in the West Indies i is not yet 
known with any accuracy. 
Migration range.—In passing from the summer to the winter home, 
the western sandpiper comes east to the Atlantic coast at least as far 
north as Massachusetts (Henshaw), and sometimes is quite common 
in the fall on Long Island (Braislin) and the coast of New Jersey 
(Baily). The strange fact is that there are no corresponding records 
from the interior to indicate the route by which these birds reach 
New England. The species seems not to be known north of southern 
Wisconsin (Kumlien and Hollister), Colorado (Osburn), and southern 
Wyoming (specimen in National Museum), while in all of the Missis- 
sippi Valley between the river and the Rocky Mountains the species 
is so very rare as to make it improbable that any large part of the 
New England birds migrate through this section. In fall migra- 
tion the species is known west in the Aleutians to Unalaska Island 
(Palmer).’ 
