220 THE BIRDS OF THE BRITISH ISLES. 



shaft-Streaks and spots on the upper parts, and bars and 

 mottles on the under parts. Length, 6'5 ins. Wing, 3'35 ins. 

 Tarsus, i in. 



Eastern Nightingale or Sprosser. Ltisdnia lusdnia 

 (Linn.). 



This bird, formerly known as the Thrush-Nightingale, has 

 a more northern and eastern range in Europe and Siberia than 

 our Nightingale. It occurs in Denmark and Sweden, where 

 it was the bird Linnaeus described. There is one reliable 

 record of its occurrence, for an example was killed on Fair 

 Island in May, 1911 ; it had arrived with other migrants. A 

 Kentish specimen, said to have been obtained in October, 1904, 

 has not been accepted on account of the late date, and another 

 said to have been killed in Norfolk has insufficient history. It 

 is a rather larger and browner bird than ours, and has more 

 or less conspicuous grey-brown mottling on its breast and 

 throat. Length, 7 ins. Wing, 3-6 ins. Tarsus, V2 ins. 



Red-spotted Bluethroat. Cyanosylvia suecica (Linn.). 



The Red-spotted Bluethroat (Plate 90) has an arctic range in 

 Europe and Asia ; it winters in north-east Africa and southern 

 Asia. On the east coast of Britain it is a frequent bird of 

 passage in autumn, sometimes travelling along our shores in 

 considerable numbers. Less frequently it has been observed 

 in spring, and in the Orkneys and Shetlands it has recently 

 been noticed on both migrations. August to October is the 

 usual time for its irregular visits. 



In appearance, actioa and many of its habits it is a 

 Redbreast ; Gaetke found it ready to trust him, the slayer of 

 scores of its fellows, when working in his Heligoland garden, 

 hopping near him " with quivering outspread tail raised above 



