148 
THE NATURALIST’S GUIDE. 
231. Chaulelasmus streperus, Gray. — Gadwall, 
Gray Duck.” Rare in spring and autumn. 
232. Mareca Penelope, Bon. — European Widgeon. 
Straggler from Europe. Mr. Samuels says it has been 
taken in the State. 
233. Mareca Americana, Steph. — American Widgeon. 
Baldpate.” 'Not uncommon during the migrations. 
234. Aix sponsa, Swain. — Wood Buch. Common 
summer resident. 
235. Fulix marila, Baird. — Scaup Buch, '^Black- 
head, " Blue-bill.” Not common on the migrations. 
236. Fulix affinis, Baird. — Little Black-head. Rare 
during the migrations. 
237. Fulix COllaris, Baird. — Ring-necked Buch 
Rare in spring and autumn. This and the three pre- 
ceding frequent the ponds and rivers of the interior. 
238. Aythya Americana, Bon. — Red-head. Rare 
in autumn. 
239. Aythya vallisneria. Bon. — Canvas-back. Rare 
in autumn. Plentiful in Boston markets, but brought 
from farther south. 
240. Bucephala Americana, Baird. — Golden-Eye, 
" Whistler.” Common during winter. Exceedingly shy. 
241. Bucephala albeola, Baird. Buffle-head, " But- 
ter-ball,” " Dipper.” Not uncommon in autumn and winter. 
242. Histrionicus torquatus. Bon. — Harlequin 
Buck, " Lord.” Yery rare during winter. 
243. Harelda glacialis, Leach. — Long-tailed Buck, 
" Old Wife,” " Old Squaw,” " South Southerly.” Abun- 
dant spring and autumn migrant ; some winter. 
244. Camptolasmus Labradorius, Gray. — Labra- 
dor Buck. Rare during winter. 
245. Melanetta velvetina, Baird. — Velvet Buck, 
" White-winged Coot,” " Butter-bill.” Common during win- 
ter on the coast. . 
