Birds of East Prussia. 357 



Cyanecula wolfi^ Breliru. 



The Wliite-spotted Blue-throat is rather rare. When I 

 came to East Prussia from Silesia^ where it is very numerous 

 in the willows on the Oder^ I looked iu vain for this lovely 

 bird. At present I know only two places where it occurs, 

 and no doubt breeds, although it is probably present in many 

 other localities also. 



Cyanecula suecica (L.). 



The Arctic Blue-throat occurs on migration in autumn, but 

 is not at all common, as it is in Western Germany, during 

 this period. 



Erithacus rubecula (L.). 



Breeds commonly, and passes through on migration in great 

 numbers, especially at the end of March and in autumn. 



RUTICILLA PHffiNlCURUS (L.). 



Arrives in April ; last seen at the beginning of October. 

 Very numerous during migration in September. 



RUTICILLA TITYS (L.). 



Rare. It breeds in very small numbers in some brick- 

 kilns near Kdnigsberg and in the S.W. of the province. 

 It has lately been observed in the midst of the town of 

 Konigsberg. 



Saxicola cenanthe (L.). 



Common. Once I found a clutch of eggs that were all 

 about one third smaller than the eggs of this bird usually 

 are. 



Pratincola rubetra (L.). 



Common. 



[Pratincola ruhicola has never been observed in East 

 Prussia. In the J. f. O. 1885, p. 91, this species was given 

 as an inhabitant of East Prussia ; but the observation cannot 

 be relied on, since specimens were not procured.) 



TURDUS MUSICUS, L. 



Common in the breeding-season, and passing through in 

 great numbers. 



