2540 Birds. 



Golden-eye (Clangula vulgaris). Females and immature males of 

 this species are very frequently met with in this neighbourhood. The 

 adult male, however, is not often seen. 



Smew (Mergus albellus). The foregoing remark on the golden-eye 

 is equally true as regards the present species : for although many fe- 

 males and young birds are annually killed in this county, yet the old 

 males seldom appear, except in the severest seasons. In January, 

 1838, three adult males were killed at one shot on the Tsis, near 

 Oxford. 



Red-breasted Merganser {Mergus serrator). A fine specimen of 

 this bird was killed on Otmoor, in February, 1838 ; and in the winter 

 of 1841 two others near Cassington, in this county. A pair, male and 

 female, were shot near Reading in 1795. — Dr. T. 



Goosander (Mergus Merganser). Is often to be met with in our 

 rivers during severe frosts, but seldom pays us a visit in milder 

 weather. 



Great Northern Diver (Colymbus glacialis). A northern diver, in 

 the immature plumage, was found in a garden on Headington Hill, 

 near Oxford, one morning, after a remarkably stormy night, in October, 

 1824. It was kept alive at the Anatomy School during six weeks, 

 and is now preserved there. The foregoing account was kindly com- 

 municated to us by Dr. Kidd, the Regius Professor of Anatomy. 

 Other instances of its capture have also occurred: in 1845 a fine spe- 

 cimen was shot at King's Weir, near Oxford. In 1794 at Pangbourn 

 and at Maidenhead; and in January, 1810, near Newbury, in Berk- 

 shire. — Dr. T. 



Black-throated diver (Colymbus arcticus). A young bird of this 

 species was shot near Cassington, in this county, in the winter of 

 1828.— K. 



Red-throated Diver (Colymbus septentrionalis). Is occasionally 

 found in this neighbourhood during winter. 



Class IV. — Passing Visitors. 



This class must evidently be subject to vary more than the others 

 according to each separate locality, being intended to contain such 

 species only as spend neither the summer nor the winter in the parti- 

 cular spot in question, but make their appearance at the intermediate 

 seasons, while on their passage to the extreme limit of their migrations. 

 It is, therefore, difficult to determine with accuracy how many of our 



