83 



THE WILLOW- WAPtBLER. 



I^hy/Uoscojnis trocldlus (L.). 



The arrival of this species was noted along the whole of the 

 southern coast-line, from Cornwall to Essex ; but the most 

 numerous records came from St. Catherine's light (Isle of 

 Wight) and from the south-eastern counties. 



Commencing with the record of a single bird, seen in 

 Devon on the 26th of March, the entry of the species 

 proceeded in a desultory manner until the 12th of April, 

 its arrival singly or in small numbers during that period 

 being reported from most of the counties as far north as 

 Cheshire and Derbyshire, while notices of single birds were 

 sent in from the Isle of Man and Cumberland. 



From the 13th to the 15th of April a small wave of 

 immigration into the south-eastern counties (Essex to Hamp- 

 shire) was apparent, and this movement developed during the 

 following days (16th, 17th and 18th) into the first important 

 influx, which extended over the whole of the south coast, great 

 numbers of birds being recorded. During the night 

 17th/18th hundreds were seen at St. Catherine's light, and 

 numbers were killed between 10 p.m. and 3 a.m., the weathei 

 being overcast and foggy. Numbers were also seen at the 

 Owers light-vessel (Sussex) and several were killed. Three 

 equally important waves of immigration followed and were 

 observed on the south coast from the 20th to the 21st of 

 April, from the 24th to the 26th, and from the 28th to the 

 1st of May respectively, while smaller numbers arrived on 

 one portion or other of the south coast every night from the 

 15th of April to the 1st of May, with the exception of April 

 the 27th and 29 th. 



At the conclusion of the last of these immigrations, i. e. on 



