VOL. XIII.] THE BIRDS OF BARDSEY ISLAND. 103 



lantern on five nights between the 2nd and qth and many 

 remained on the island during the succeeding days. They 

 were found amongst the brambles growing on the turf walls, 

 amongst the potatoes, and in the gorse clumps on the southern 

 plateau. At times these places were full of Whitethroats, 

 particularly on the mornings of the 3rd, 7th and 9th and to a 

 less extent on the i6th. All had gone by the 17th, and no 

 others were seen up to the 21st. 



The Fieldfare {Turdus pilaris). 



A regular passage migrant in spring and autumn in con- 

 siderable numbers, but not coming to the lantern as frequently 

 or in such large numbers (which it never does) as the majority 

 of the Turdidce. 



Spring passage, mid-February to mid- April, latest record 

 April 24th. January movements as with Song-Thrush and 

 Redwing recorded in 1910 only. 



Autumn passage, the last week in October, (earliest date 

 24th) to the last week in November, occasionally to mid- 

 December. 



The Mistle-Thrush [Turdus v. viscivor.is). 



Recorded at the lighthouse six times in spring and seven 

 times in autumn, between July 1908 and June 1914. Allowing 

 for the numerical inferiority of the species as compared with 

 the other Turdidce and the comparative infrequency with 

 which it comes to the light anywhere, it is not improbable 

 that these records represent a regular passage past the island 

 in spring and autumn. The dates covered by the records 

 are between February i8th and April ist and September 

 14th and November 6th. The numbers seen were always 

 small, except on November 5th;6th, 1908, and February 

 23rd/24th, 1909, when considerable numbers were recorded. 



Not seen by Mr. Aplin or by Mr. Coward. 



On June 12th and 19th, 1913, I saw an adult bird, feeding 

 round or drinking at a spring on the mountain side at the 

 northern end of the island. On each occasion it came from 

 and went back to the enclosed gardens at one of the northern 

 farms. There are one or two fruit and sycamore trees in 

 these gardens, where it seems not at all improbable that the 

 bird had a nest and young. The species seems to have 

 increased and extended farther west in W. Carnarvon of 

 recent years, which lends support to this probability, though 

 its breeding on the island would be a still greater extension 

 of its range. 



Single birds were present on the island on September 

 i6th, 17th and 20th. 



