500 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
with a rather indistinct subterminal lunule of dusky; bill dusky or 
blackish for terminal half, orange-reddish basally; legs and feet pale 
reddish (flesh color in life?). 
Downy young.—Upper parts very pale buffy grayish or grayish 
buffy to wood brown or bright avellaneous, irregularly spotted or 
marbled with blackish, except on forehead; forehead, suborbital 
and malar regions, and throat grayish to sooty blackish; chest white 
or brownish white, passing into very pale buffy grayish to light 
buffy brown or drab on posterior and lateral under parts. 
Adult male.—Wing, 257-290 (272.5); tail, 148-202.5 (176.8); 
exposed culmen, 29.5-42 (33.2); tarsus, 13.5-16 (14.9); middle toe, 
15-17 (16.1).% 
Adult female.—Wing, 238-277 (263.1); tail, 135-193 (165.5); ex- 
posed culmen, 28-35 (31.1); tarsus, 13.5-15.5 (14.4); middle toe, 
15-17.5 (15.9).° 
Breeding from northern and western Alaska (Semechi and Amchitka 
islands, Aleutian chain; Shumagin Islands; coasts of Norton and 
Kotzebue sounds, Yukon Valley, Point Barrow, etc.), Melville 
Island, northern Greenland, etc., southward to southern Alaska 
(Yakutat Bay), northern British Columbia, Lower Slave Lake, central 
Keewatin, Quebec (Point de Monts), Magdalen Islands, Maine, and 
(formerly) coast of Massachusetts (Muskegat Island, etc.); migrating 
southward along or near Atlantic coast to Long Island, rarely to 
a Twenty-two specimens. b Sixteen specimens. 
Ex- 
Locality. Wing. | Tail. | P05?d | Tarsus,| Middle 
-+| men, : 
MALES, 
Two adult males from northern Europe .....-..--.-.......-.+- 271 183.7 33 16 16.5 
Three adult males from Disco Island, Greenland............... 269.3 | 174 33 14.7 15.8 
One adult male from Cumberland Gulf........-.2..2--22-2-++- 285 176.5 | 33 15 16.5 
Two adult males from Newfoundland (Funk Island)...........| 276 193.7 34.7 15.7 16.5 
One adult male from Quebec (Rupert House) 278 194 32 15 16 
One adult male from. Nova Scotia............0--.2eeeeee eee es 265 164.5 34 15 16.5 
Two adult males from Massachusetts (Muskegat Island). ...... 262.5) 157 30.5 14.2 15.7 
Nine adult males from Alaska...........2.00..eceeeceeeeeeeeee 273.2 | 173 32.7 14.8 16 
One adult male from Bering Island, Kamchatka. .............. 279 186 42 15 16.5 
FEMALES, 
One adult female from Greenland..............2.2...0.2-.e00 ee 277 198 32 15.5 W 
One adult temale from Cumberland Gulf...... 270 161 31 15.5 16 
One adult female from Ungava (Fort Chimo) 257 151 29 14 15 
One adult female from Nova Scotia................2c2ceceeeeee 253 173 31.5 15 16 
Three adult females from Massachusetts ee Island)....| 241.7 | 152.7 30.5 14,2 16.5 
Eight adult females from Alaska.............2-00-0-ceeececcene 270.9} 166.6 81.5 14.4 15.2 
One adult female from eastern Siberia (Valley of Yenesai)...... 260 LOO? [associcicais! 14.5 15.5 
