( 101 ) 

 THE BIRDS OF BARDSEY ISLAND. 



BY 



N. F. TICEHURST, m.a., m.b.o.u., etc. 



[Continued from p. 75.) 



PART 3. 



The Northern Willow-Warbler {Pkylloscopus trochiliis 

 eversmanni) . 



Once recorded in spring, viz. : April loth-iith, 1913. 



In September 1913 there were two birds of this race 

 amongst the Willow-Warblers taken at the lantern on Septem- 

 ber 2nd/3rd and 6th/7th and at least one was identified 

 amongst the brambles on the morning of the i6th. 



The Wood-Warbler {Phylloscopus s. sihilatrix). 



A single Wood-Warbler was beaten out of one of the gorse 

 clumps near the lighthouse on September 9th, 1913. It could 

 only flutter and had evidently been injured against the lantern 

 during the preceding night. 



The Grasshopper-Warbler {Locustella n. ncevia). 



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

 comparatively large numbers. 



Spring passage from mid-April to the third week in May. 



Autumn passage from the first week in August to the first 

 week in October. 



In largest numbers at the end of August. 



In September 1913 Grasshopper- Warblers occurred at the 

 light on three nights in the first nine days of the month, and 

 single birds were seen in the standing corn on the 3rd and 5th, 

 while on the 9th several were " walked " out of the potato 

 fields. None were seen later. 



One day the lighthouse-keepers cleaned out the trumpets 

 of the fog-syrens, removing some two or three dozen desiccated 

 bodies of birds, and curiously enough quite a high proportion 

 of these were Grasshopper- Warblers, most of the others being 

 Sedge- and Willow- Warblers. 



The Sedge-Warbler {Acrocephahts schcenobcenus). 



A regular double-passage migrant in large numbers. 



Spring passage, from end of April to beginning of June. 



Autumn passage, from the beginning of August to the end 

 of September, in largest numbers at the end of August. 



It also occurs regularly as a summer resident, though 

 probably in varying numbers. Recorded by Mr. Aplin as 

 ^' one or two about the \\illow-beds," and also by Mr. Coward. 



In June 1913 it was, with the exception of a single pair 

 that had their territory in the corner of a meadow much 



