WEST COAST OF SCOTLAND. 91 



rush at Barra Head, various, N.E., clear, and Puffins; a few 



on 9th; 17th to 22nd, a few only of Marrots and Kazorbills 



seen. On May 6th and 7th, Puffins, Kazorbills and Marrots 



(Marrot or Guillemot) arrived in great numbers ; and at 



Kyleakin two Tysties (i. e. Black Guillemots) seen flying S.E. 



In autumn, all left Barra Head except a few by Aug. 20th, 



but reappeared for a day on 30th, on which day all the 



Puffins left, light S.W. In October, continuous flocks of 



Puffins flying S. before a north gale at Khinns of Islay, on 



October 12th. 



General Remarks. 



During the past six years' Migration Reports we have to 

 thank many of our correspondents for the regularity with which 

 they have acceded to our requests. Specially must we thank 

 the following for the unbroken series of schedules during the 

 past six years, viz.: Sumburgh Head, six years, Messrs. William 

 Anderson (1879 and 1880), John Wilson (1880, 1881, 1882), 

 D.M. Scott (1883 and 1884). Pentland Skerries, six years, D. 

 MacDonald (1879, 1880, 1881, 1882, 1884), and Mr. J. Gilmour 

 (1884). Dunnet Head, Caithness, five years, George McLachlan, 

 (1879, 1880 blank), David Laidlaw (1881, 1882, 1883, 1884). Bell 

 Rock, James Jack (1879, 1880, 1881, 1882, 1883, 1884). Isle of 

 May, Joseph Agnew, six years (1879, 1880, 1881, 1882, 1883, 

 1884). 



These stations are situated as follows : — 



Sumburgh Head... 300 feet high... white fixed light. 



Pentland Skerries, 170 feet high... white fixed light. 



Dunnet Head 346 feet high... white fixed light. 



Bell Rock 93 feet high... white and red revolving. 



Isle of May 240 feet high... white fixed light. 



Were Bell Rock also a fixed white light, no doubt returns 

 would be equally extensive, or greater, possibly, than Isle of 

 May. The white fixed lights have superiority ; and when this 

 is combined with low height over the sea and insular position, 

 the best conditions appear, and are only to be beaten by floating 

 light-ships. The flash lights have little chance to compete. 



Next let us also thank the following correspondents : — At 

 Whalsea Skerries, 3 years, Neven Kerr (1880, 1881, 1882). 

 N. Ronaldshay, four years, JohnTulloch (1879, 1880, 1881, 1882). 

 Cromarty, R. S. Ritson, four years (1880, 1881, 1882, 1883). 



