ANSERES. 41 
of winter, and is gone from the northern parts of the state 
with the freezing of the streams and ponds. 
36. (144.) Arx sponsa (Linn.). 255. 
Wood Duck. 
Synonyms: Anas sponsa. 
Summer Duck, Tree Duck, The Bride. 
Audubon, Orn. Biog., III, 1835, 52. 
This duck breeds throughout the state in favorable local- 
ities. It nests in the woods some distance from water, but 
must have feeding places within reach of the nest. The 
young are said to be carried to the water when hatched. 
There seems to be little difference in numbers during the 
migrations from those during summer. It can hardly be 
called a common species, yet it is hardly rare. The first 
birds appear at Oberlin about the middle of April and are 
gone by the last of October. 
Subfamily FuLicutin#%. Sea and Bay Ducks. 
Fourteen species represent this family in our state, some 
of them being rare. The members of this group dive when 
feeding, frequently to considerable depths. Their food con- 
sists of the seeds and roots of aquatic plants, mollusks, 
crustaceans, and some fish in winter. Some members of the 
group dive as readily as the true divers. Most of the 
species are found in flocks of varying size during the mi- 
grations. 
37. (146.) AyTHyA AMERICANA (Eyt.). 260. 
Redhead. 
Synonyms: Atthya americana, Fuligula ferina var. americana, 
F. ferina, F. americana. 
Pochard, American Pochard. 
Kirtland, Preliminary Report Ohio Geol. Surv., 1838, 67. 
The Redhead is only tolerably common as a migrant. It 
visits the ponds and small streams as well as the larger 
bodies of water. It is a fairly regular visitor to the Oberlin 
water-works reservoir both spring and autumn. 
