A MONTH ON THE EDDYSTONE 311 



Passer montanus, Tree-Sparrow. — Four were seen 

 during the night movement to the south on 8th 

 November 1881. 



Alauda arvensis, Skylark. — One of the most 

 frequent and numerous visitors, often occurring in vast 

 numbers in the spring and autumn, and in some 

 numbers passing south during cold periods in winter. 



The spring migrations northwards commence during 

 the latter half of February, continue during March and 

 April, an^ sometimes last until the first week of May, 

 the 9th being the latest record. 



The autumn emigrations date from 30th July, but 

 are not much in evidence until mid-September, thence 

 onwards to the third week of November. 



The winter emigrations may take place late in 

 November, during December and January, and the first 

 half of February, depending upon the severity of the 

 season. 



The records, with few exceptions, relate to move- 

 ments during the night-time. 



MoTACiLLA LUGUBRis, Pied Wagtail. — Chiefly an 

 autumn emigrant, passing southwards in considerable 

 numbers. There are scarcely any data for the spring 

 return movements, but one was captured at the lantern 

 on the morning of i8th March 1904, and sent. 



The autumn departures are recorded from loth 

 September to 4th November. Many pass between 

 6 A.M. and noon, and a few visit the lantern during the 

 night movements. 



MoTACiLLA ALBA, White Wagtail. — In spring it 

 has only been occasionally recorded on its passage 

 northwards during the latter half of April. 



The autumn return towards winter quarters has been 



