VOL. XIII.] THE BIRDS OF BARDSEY ISLAND. 187 



Not yet found present as a summer resident, though the 

 barren north-western corner of the island would be a not at 

 all unsuitable locality for it. 



Eight Ringed Plovers were on the rocks round the coast 

 on September 3rd, 1913. On the 4th two only were seen, 

 and after that no more until the 9th, when two others arrived. 

 Thenceforward some were seen daily, except on the nth, 

 I2th and 15th, but never more than eight. It is possible 

 that the small fluctuations noticed from day to day represent 

 the halting on passage of family parties. The numbers 

 were higher and more constant from the i6th to the 21st than 

 before the i6th. 



The Golden Plover {Charadrins apricarius). 



Small numbers are recorded from the light on odd dates 

 between early January and mid-March in 1881, 1910, 1912 

 and 1914, in September 1913 and in December 1884 and 

 1913- 

 The Lapwing {Vanellus vanellus), 



A regular double -passage migrant in large numbers. 



Spring passage, from early January to mid- April ; in largest 

 numbers from the end of February to the end of March. 



Autumn passage, from mid-October to mid-November, 

 occasionally to the third week in December. 



Many birds halt on the island during migration, and the 

 light records refer both to nocturnal and diurnal movements. 



As a summer resident recorded both by Mr. Aplin and by 

 Mr. Coward. 



It is probable that some Lapwings had already nested and 

 left the island by June 12th, 1913, as one of the lightkeepers 

 told me of a pair, whose nest he had several times unsuccess- 

 fully searched for near the lighthouse, but there were no birds 

 at that end of the island at all during my stay. Mr. Aplin 

 also refers to the presence of birds in that locality. A flock 

 of seven that passed over the island without stopping on the 

 13th lends support to this supposition. The only other birds 

 seen were two pairs that had young on the barren north-west 

 corner, an eminently suitable nesting ground. 



In September the main autumn movement had not begun, 

 and the few birds seen were no doubt travellers from no great 

 distance, making a leisurely southward movement. The local 

 summer residents had already gone by the 3rd. On that day 

 two flocks were seen to arrive from the north and pitch into 

 the fields at the north end of the island. These had gone by 



