89 



THE WOOD-WARBLER. 



Phylloscopus sihilatrix (Bechst.). 



In 1906 the first immigration o£ the Wood-Warbler took 

 place principally on the western half o£ our southern shores. 

 There was no evidence whatever of the landing of any indi- 

 viduals to the east of West Sussex, and indeed those arriving 

 eastward of Mid-Hants only formed an infinitesimal part of 

 the total. 



Small numbers began to arrive in the west duriuo- the 

 latter part of the first and the second weeks of April, the 

 largest number reaching Devon about the 12th, while a few 

 landed as far east as West Sussex on the 13th. 



Up to the 15th of April the species was sparsely distributed 

 in suitable localities in most of the counties south of the 

 Thames and Severn, with the exception of Surrey and Kent. 

 After that date the birds seem to have straggled northwards, 

 till, by the end of April, the species was generally but very 

 sparsely distributed, as far north as Durham on the east and 

 Shropshire and N. Wales on the west. Taking this into 

 consideration, coupled with the fact that a number of birds 

 appear to have passed through Notts at an early date, it 

 would seem that the direction of the flight of this first 

 straggling movement was mainly from the south-west in a 

 north-easterly direction. 



The first large arrival seems to have taken place about April 

 the 30th on the coasts of Dorset and Hampshire ; on that day 

 the numbers in Wiltshire were suddenly augmented and there 

 was a further increase on the two following days, while in 

 Hampshire there was an increase on May the 1st. In the 

 absence of any actual lighthouse -records it is not possible to 



