87 



THE WILLOW-WARBLER. 



Phi/Uoscopus trocldlus (L.). 



The arrival o£ this species took place along the whole of the 

 south coast. It was first noted in Somersetshire on the 19th 

 o£ March, and from that date until the end of the month 

 strao-glers were reported from various counties as far north 

 as Yorkshire, where a single bird was seen on the 31st. 

 The first marked influx of Willow- Warblers took place on 

 the night of the 3rd/4th April, when large numbers were 

 reported at St. Catherine's light, Isle of Wight. 



It was not, however, until after the arrival of the second 

 large Avave of immigration, which occurred on the nights of 

 the llth/12th and 12th/loth, that the number of birds in the 

 country showed any great increase. From those dates the 

 notes of inland observers point to a steady stream of birds 

 passing through the kingdom, reaching Durham on the 

 12th, Cumberland on the 14th, Westmoreland on the 17th, 

 Northumberland on the 18th, and Clyde on the 19th and 

 21st, while occasional reports from the lights and records 

 from the southern coastal counties showed that fresh arrivals 

 continued to make their appearance. The birds were so 

 generally distributed and so numerous after this second 

 influx that it was quite impossible to trace their movements in 

 detail. 



During the first week in May there was a third great 

 immigration of birds into the country, immense numbers 

 being reported at St. Catherine's, Dungeness and South 

 Foreland lights between the nights of the 1st and 6th, while 

 on the night of the 8th/9th many were noted passing the 

 Kentish Knock light-vessel. 



On the 17th/18th and the 18th/19th there was a fourth, 



