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liglithouses ; but on tlie ITtli there were not nearly so 

 many birds and only a few stray individuals were noted at 

 St. Catherine's. On the 18th the species was noted at the 

 Hanois light, Channel Islands. It would appear from the 

 reports of inland observers that after these ' waves ' of 

 innnigration an increase in the number of birds was noted 

 in the southern and west-midland counties^ but not in the 

 oast-midland and eastern counties. 



With regard to the north, the first arrivals were noted in 

 Cumberland on the 19th, in Northumberland on the 21st, and 

 in Westmoreland on the 22nd. 



Large flights of Willow- Warblers were observed at 

 St. Catherine's on the 21st, and at Dungeness, Kent, on the 

 22nd, and on the following days there was an increase in 

 many of the southern counties, while a slight increase was 

 noted in some of the eastern and north-midland counties. 

 On the 21st many passed through the Isle of Man. 



On the 24th a large flight was noted at St. Catherine's and 

 was followed by a further immigration on the 2Gth, which 

 extended to Portland Bill, Dorset. On the following days 

 an increase was noted throughout the country, but more 

 especially in the eastern counties, where the species had 

 hitherto been very scarce. 



During the first week of May small movements seem to 

 have been going on throughout the country. On the Gth a 

 fairly large immigration passed the Cornish and Hampshire 

 lights, and was continued on the 8th at the latter light. 

 The birds apparently passed on north and spread over the 

 country. 



Several smaller immigrations were reported from the 

 St. Catherine's light on the lath, 14th, 15th, 16th and 20th, 

 and rather larger ones on the 21st and 22nd ; these flights 

 all arrived in company with many other species, but, owing 

 to the numbers of Willow- Warblers already in the country, 

 their course could not be traced. 



Nests were re[)ortcd from Hampshire on May the 1st, 

 from Derbyshire on the 11th, and from Yorkshire on the 

 17th. By that date nesting had become general, and it may 



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