188 BRITISH BIRDS. [vol. xiii. 



the next day, and only two birds were seen. On the 5th two 

 more had come, and two others on the 6th, and these six 

 remained until the 9th. During the next two days only 

 one remained, and it had gone by the 12th. On the 19th 

 a flock of eight arrived on the west coast between 9 and 10.30 

 a.m., but their arrival was not witnessed. They remained 

 about the fields for the rest of the day, but had gone by the 

 next morning. 



The Turnstone {Arenaria i. interpres.) 



Once recorded from the light, a single bird on July 31st,' 

 August 1st, 1913. Probably a double -passage migrant. 



Not recorded by Mr. Aplin or by Mr. Coward. 



In June 1913 I found seven birds on the 15th (they may 

 have been there before), scattered about the rocks round the 

 southern hal^of the island, and after that date I saw them or 

 some of them whenever I visited that locality or the west 

 bay. " Sometimes they were together and sometimes scattered. 

 One was nearly in full summer plumage, the others in various 

 stages of change, one or two showing hardly any trace of it 

 at all. 



In September twenty or more were scattered round the 

 coastal rocks in small parties, and were encountered daily 

 from the 3rd to the 12th. On the 13th, a day of strong N.E. 

 wind, with rain and exceedingly cold, all the Waders on the 

 island were concentrated in the east bay, the only sheltered 

 spot, and here we counted forty-six Turnstones. It is doubt- 

 ful whether this represents an actual increase on the numbers 

 previously seen. It seems mere likely that it was a mere con- 

 centration, the extra numbers having come in from the north 

 and east coasts, where they might have been all the time 

 without anyone being aware of their presence. There was 

 possibly a decrease on the 17th ; at any rate far fewer were 

 found on that and the succeeding days than before. 



The Knot {Erolia c. canutus). 



A regular double passage migrant. 



Spring passage, between mid -January and the end of March. 

 Autumn passage, from the beginning of September to the 

 end of November. 



The Sanderling [Crocethia alba). 



A single Sanderling was seen on the coastal rocks on 

 September 3rd, 1913. 



