81 



first, and those on the western side of the country being 

 considerably in advance of those on the east : thus numbers 

 had reached Lancashire and Cumberland, and others had 

 penetrated some distance into the ( Jlyde area before there 

 was any appreciable increase in East Anglia, Nottingham 

 and Lincoln, and the first record for Northumberland Avas 

 coincidental with that from Argyll. The magnitude of the 

 movement on the western side was also shown by the hirge 

 numbers passing north by a coastal route. This was indicated 

 by the number of records and the very considerable number 

 of individuals recorded from the light-stations between 

 Lundy Island (N. Devonj and the Isle of Man and the 

 Lancashire coast during that period. A similar but smaller 

 movement by a route up the east coast was indicated by the 

 occurrences at the lights on the Yorkshire coast on the I'Jth 

 and 20th. 



A second extensive innnigration, chiefly on the western 

 half of the south coast, took place during the first half of 

 Ma}': commencing on the 4tli, arrivals took place daily up to 

 the 8th and then intermittently up to the 15th. The majority 

 of these birds were no doubt passage-migrants on their 

 way to more northerly nesting-areas. It was doubtful from 

 the records whether any considerable number passed 

 through the country ; for our own birds being at that time 

 very numerous, passage-migrants were difficult to detect. 

 There can be no doubt, however, that very considerable 

 numbers passed north b}- both the east and west coast routes 

 as was shown by the records from the light-stations, which 

 indicate that these passage-movements were in progress until 

 the end of May. 



Willow-Warblers were nesting in Iladnor on the 21st of 

 April and in Glamorgan and Shropshire on the 21th and 

 25th, while nests with eggs were found in Cheshire on the 

 29th, in Yorkshire on the 5th of May, in Wiltshire and 

 Staffordshire on the 6th, in Derby on the 17th, in Oxford 

 on the 19th and in Perthshire on the 23rd. 



An example of the Northern "Willow-Warbler [Pliylloscopits 

 trochilns eversmanni) was killed at Ilanois light (Guernsey) 

 on the Gth/7th of May. 



