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, STEPS. American Widyeun. 

 " Baldpate." .Sot uncommon during the migrations. 



234. Aix sponsa, SWAIN. \Vood Duck. Common 

 summer resident. 



235. Fulix marila, BAIRD. Scaup Duck, " Black- 

 head, " Blue-hill." Not common on the migrations. 



236. Fulix affinis, BAIRD. Little Black-head. Rare 

 during the migrations. 



237. Fulix collaris, BAIRD. Ring-necked D,k. 

 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. 



23 ( J. 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 shv. 



241. Bucephala albeola, BAIRD. Bn$?-head, " But- 

 ter-ball," " Dipper." Not uncommon in autumn and winter. 



242. Histrionicus torquatus, BON. Harlequin 

 Duck, "Lord." Very rare during winter. 



243. Harelda glacialis, LEACH. Long-tailed Duck, 

 " Old Wife," " Old Squaw," " South Southerly." Abun- 

 dant spring and autumn migrant ; some winter. 



244. Camptolaemus Labradorius, GRAY. Labra- 

 dor Duck. Rare during winter. 



245. Melanetta velvetina, BAIRD. Velvet Duck, 

 " White- winged Coot," " Butter-bill." Common during win- 

 ter on the coast. 



