216 BRITISH BIRDS. [vol. xiii 



out the potatoes, etc., for migrants, and one was beaten out 

 of a gorse clump on the lighthouse plateau. The locally bred 

 young had apparently left the island before the 3rd, as out of 

 seven seen six at least were adults in a flightless condition. 



The Water-Rail {Ralliis a. aquaticus). 



A regular double-passage migrant in, for the species, 

 comparatively large numbers, with a high mortality at the 

 lantern. 



Spring passage, from mid-March to the end of April ; in 

 largest numbers at the end of March. 



Autumn passage, from the end of August to the third week 

 in December. 



On March 29th/30th, 1913, fourteen were killed and on 

 November 5th/'6th, 1909, fifty. 



The Moor-Hen {Gallinula ch. chloropus). 



Recorded from the light in spring on March I4th'i5th, 

 1910, March 29th/30th, 1911, April 9th/ioth, and May 

 5th/6th, 1913 ; in autumn, on November 5th/6th, 1912, 

 August 31st /September ist, September Sth/gth, October 

 4th'5th, and December 22nd/23rd, 1913. All, with one 

 exception, single birds. 



As a summer resident not recorded by Mr. Aplin or by Mr. 

 Coward. On June i8th, 1913, I caught a young bird, that 

 was just shooting its feathers on the back, outside one of the 

 osier beds ; two days previously I had found footmarks and 

 a feather on the muddy bank of the little stream outside one 

 of the other osier beds, so that there was certainly one, if not 

 two, breeding pairs on the island. 



In September 1913 single immature birds were seen daily 

 up to the 8th. On that night an immature bird was killed 

 at the lantern, and curiously enough, not another was seen on 

 the island. 



The Coot {Fulica a. atra). 



Twice recorded at the light, one on November 23rd/24th, 

 1913, and one on January 19th 20th, 1914. 



The Red Grouse [Lr :opus scoticus). 



Mr. Forrest {Vertebrate Fauna of N. Wales, p. 310) states 

 that in hard weather abou^' 1898, many Grouse crossed over 

 to Bardsey, and th icjhtk epers have twice reported its 

 presence on the islanc' in re ^nt years, viz. : one on April 

 20th, 1912, and four o.. April md, 1914. 



