161 



parallel with tlie west coast, though the absence of records from any 

 stations south of Pembroke during the same period tends to negative 

 Continental Europe as the immediate starting-point of these birds. 

 ( Cf. remarks under Redwing.) 



On the 7th of March a single bird was seen flying S.E. at noon from 

 H.M.S. ' Dido,' at 56° N.. 1° E., in the North Sea, and on the same day 

 and on the two following nights a few Song-Thrushes were noted on 

 passage along the Northumberland coast, On the lOth/llth immigrants 

 were seen at Anvil Point Lt. (Dorset), and on the 14th/15th a few more 

 were observed on passage at Coquet Island Lt. (Northumberland). 

 During the first ten days of April a considerable immigration was 

 recorded at the Dorset and Isle of Wight Lights, and comprised birds 

 of both the British and Continental forms. 



THE REDWING {Turdm iliacus) . 



During the first week of January a similar movement to that of the 

 S(,ing-Thrush was recorded from the west coast stations, and on the uight 

 of the 27th a single bird was taken at Spurn Head Lt. (Yorkshire). 



Similarly in February Redwings accomjanied the returning Song- 

 Thrushes which occurred at St. Catherine's Lt. en the 12th/13th, and 

 a single bird was taken at the S. Bishop Lt. (Pembroke) the following 

 night. 



On the 5th of March at 4.30 p.m. a single bird came on board H.M.S, 

 * Dido ' in the North Sea, 53° N., 3° E,, and afterwards proceeded to the 

 N.W. Between the 6th and 9th of March a nearly similar movement to 

 that of the Song-Thrushes was recorded at the same west-coast stations, 

 but with the addition of records from a Bristol Channel Lt.-v. on the 

 night of the 6th, and of very large movements at St,' Catherine's Lt. on 

 the 5th and 8th. Smaller numbers at the latter station were also 

 observed on the 9th, corresponding with the diminution of the movement 

 on the west coast. 



As in the case of the Song-Thrush, there was a renewal of this west 

 coast movement, but in smaller numbers, on the 12th, 14th and 29th, 

 Further arrivals of immigrants occurred on the lOth/llth at the Isle of 

 Wio'ht and on the Kent coast, while simultaneous records from the 

 Kentish Knock Lt.-v. and Spurn Head Lt. on that night, and from 

 the latter on the 16th/17th, indicate an emigration from the east coast. 

 An increase was noted in Sussex on the 17th of March. 



During the first fortnight in April the immigration was continuous, 

 and Redwings arrived in S. Devon and Hampshire on the 1st, in Dorset 

 on the 6th/7th and along the whole of the south coast on the 9tb/10th. 

 Exceptionally large numbers arrived on the coast of Kent from the 

 lOth/llth to the 12th/13th. 



"West coast immigrations were recorded from the Isle of Man and 



